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Description
Sheep IL-4 (Interleukin 4) ELISA KitThe Sheep (IL 4) Interleukin 4 ELISA Kit measures Interleukin 4 in Sheep samples. The plate has been pre coated with Sheep IL 4 antibody. IL 4 present in the sample is added and binds to antibodies coated on the wells. And then biotinylated Sheep IL 4 Antibody is added and binds to IL 4 in the sample. Then Streptavidin HRP is added and binds to the Biotinylated IL 4 antibody. After incubation unbound Streptavidin HRP is washed away during a washing
The Sheep (IL-4) Interleukin 4 ELISA Kit measures Interleukin 4 in Sheep samples. The plate has been pre-coated with Sheep IL-4 antibody. IL-4 present in the sample is added and binds to antibodies coated on the wells. And then biotinylated Sheep IL-4 Antibody is added and binds to IL-4 in the sample. Then Streptavidin-HRP is added and binds to the Biotinylated IL-4 antibody. After incubation unbound Streptavidin-HRP is washed away during a washing step. Substrate solution is then added and color develops in proportion to the amount of Sheep IL-4. The reaction is terminated by addition of acidic stop solution and absorbance is measured at 450 nm.
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4.2 ★★★★★
Based on 1339 reviews
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Product Reviews
★★★★★ 5
An Actual Nice Chair for a Decent Price. +2 for the Tool.
Color: Black Grey
Welp, My old chair finally broke, so It was time for a new one. I ended up coming across this chair here, and I couldn't really find anyone talking about it online. I decided to give it a shot since it was on a good sale for Christmas, going down to 99$. I'm going to be honest, I am pleasantly surprised. The cushioning for it is a little firm, but that is perfect for me. Its pretty average when it comes to office chairs, but having the added lower back support is a great touch. I have no complaints about it.
The one thing that I am actually really happy about isn't on the chair. Don't get me wrong, over the week I have been using it, It has been nothing but great. That thing is the actual tool it came with. Its a basic Allen key, but the top of it is a molded handle instead of a "L" piece of metal. It made the already easy process of putting together this chair even better. Even after this chair has ran its course like all other chairs, I'm going to still use this tool.
So yeah, I think 5 - stars pretty accurately describes how I feel about my chair.
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Reviewed in the United States on January 2, 2026
★★★★★ 5
COMFY CHAIR GOOD SUPPORT
Color: Dark Brown
So I needed an office chair because the one that I had wasn't really helping my back any. And it just didn't have enough cushion on the chair because when you want to sit for hours at your desk you want to be comfortable. So I took a chance on buying this chair. I thought the color was good and the price was right but I was still a little nervous because it said put together. So I got it right away only took 3 days. And the directions for pretty easy there were a couple of spots that I think we're out of order because you had to kind of play around with the screws going into the holes from the arms but I think if I were to get another chair like this I would probably do it my way because it's pretty self-explanatory but I followed the directions that came with the chair. And hey I'm 65 years old and I put this chair together. It's nice it's sleek and oh my God is it comfortable!!! Right where my lower back and sciatic is I get the support and it just feels good and I know that if I have to be at my desk for 3 or 4 hours I'm going to be comfortable. I highly highly recommend getting this chair.
The only issue that I had was the driver did not leave it on my porch. I had ordered a Vizio TV a couple months ago and the driver brought it up to my porch. So I just had to go out and take two steps bring it into the house I really appreciated that.
This driver didn't even come through the gate and there is no signs of any dogs because there aren't any. So this driver just left this giant heavy box it was about 35 lb in front of the garage where it was very visible from the road. And I had a dragon to my front door it was heavy I did not like that at all. But it wasn't damaged or anything and I do love the chair. I just don't like what the driver did.
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Reviewed in the United States on November 3, 2025
★★★★★ 5
Great sturdy chair and beautiful color
Color: White
I love this chair. I bought it for my home office. It is beautiful, sturdy and very comfortable. I'm not good at all with assembling even basic things but I would say that this was relatively pretty simple for someone like me to put together. Good price and good product.
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Reviewed in the United States on April 3, 2026
★★★★★ 4
Reliable, Comfortable, and Good-Looking Chair — I Keep Coming Back to It
Color: White
This is my fourth time purchasing this Amazon Basics mid-back office chair, which says a lot about its overall value. It looks clean and modern, fits well in a home office, and is genuinely comfortable for daily use. I typically get about a year and a half out of each one, which feels reasonable given the price point and materials.
Out of the box, the chair is easy to assemble and immediately comfortable. The padding is supportive, the armrests are well positioned, and the faux leather gives it a more upscale appearance than many chairs in this category. It rolls smoothly, swivels easily, and works well for long computer sessions without causing back or shoulder fatigue.
That said, this is not a lifetime chair. After extended use, the cushioning and structure do begin to wear, and that’s usually when I replace it. Still, considering the comfort, appearance, and cost, it remains one of the best value office chairs I’ve found — which is why I keep buying it again.
Pros:
• Comfortable padding and good mid-back support
• Clean, modern appearance that looks great in an office
• Smooth rolling and stable base
• Easy assembly
• Excellent value for the price
Cons:
• Durability is moderate; expect replacement after about 1½ years
• Not designed for long-term heavy-duty use
Verdict:
If you want a comfortable, attractive, and affordable office chair that performs well for daily use, this is a strong choice. It may not last forever, but its comfort and value make it easy to recommend — and easy to repurchase.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Highly recommend
Color: Black
Very sturdy, the cushions make it super comfortable. The size and ease of movement are perfect. Assembly was super easy. A very quiet chair. Wonderful all around value.
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Reviewed in the United States on February 28, 2026
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