200 µL, Standard Tip, Graduated, "ECO PACK" Refill Stack, Sterilized "123R-755CS " (96 tips x 5 plates x 10 stacks)

These pipette tips came exactly as expected and described: no rack included, just a compact refill-style box loaded with 480 tips. The tips themselves are well-formed, consistent, and fit my standard pipettes without any problems.I’ve tested a few for basic liquid transfers and haven’t had a single dud or misshaped one. They snap on cleanly and release fluid evenly, which is really all I need from a refill pack like this.At this price point, the value is excellent! Especially for routine lab use where volume matters more than fancy packaging. I’ll definitely reorder when I run low.

These pipette tips are good for my lab. I got 480 tips in an ECO Pack. They are 200 µL size and are natural color. They can be cleaned with heat ( autoclave) and come in a refill pack. They have a very thin tip point. They are made in Japan, so they are good quality. I would love to order more in the future!

Fits and works perfectly on my 100µl NT-S100 micropipette. The ultra-thin tips are great for precision and help to ensure that all the liquid comes out without sticking. Strong material, and the graduation marks are easy to see. This Eco pack is ideal for high-volume environments, but you'll need to obtain the 1298-755RA rack separately for the best usage experience.

Watson is a go-to company for scientific equipment. Trustworthy, reasonable prices and equipment you can count on. These work well for my lab.

Excellent quality as expected from Watson, and a product manufactured in Japan. The fit and finish is perfect.

Good pipette tips at a good price! I like the thin wall, allows more precision. These are guaranteed to be free of DNA, which could be very important if you're working on biology studies. I've had a good experience with Watson lab products so far. I am going to buy more sizes of these tips.

These are Japanese pipette tips from Watson - a long-time maker of quality lab products. I got the 200 microliter tips. They come in five stacked racks of 96 (8 x 12) perfect for use with 96 well cell culture plates. They fit my pipetter snugly and pop off easily with the ejector as they should. No complaintsThey have a visual level marking at what appears to be 20, 50, and 100 ul. Even though they are made of the same material as the tips I was previously using, they are a bit clearer, likely having smoother surfaces.

Five plates of standard pipette tips, perfectly uniform. Translucency is sufficient to visually confirm the aspirated fluid level. Accuracy, of course, will depend on the pipette it's mated to.The stacked boxes are nice but I would have appreciated the inclusion of a rack.

Easy to use, good fit, lightweight, durable and good quality.

The pipette tips themselves are excellent. They fit my VWR and Fisher Scientific micropipettes perfectly, and the tips are tapered to a fine point that allows all the contents to be dispensed. They are Japanese made, and I have absolutely no complaints about the quality. My only issue is with the packaging, which for a laboratory item can have significant impacts. The problem is that the tips come stacked in a small box with several layers of tip trays nested inside each other. You are expected to take the trays out and put them in boxes for autoclaving, which is typical. However, there is no barrier of any kind between the layers of trays, and in fact each tip is actually stacked inside another tip from the tray above it so tightly that the layers stick together when they are taken out. Basically, this results in the tips from bottom layers being pulled out when you try to take one off the top. This is highly inconvenient and messy, and it means that half your tips may end up falling on the floor while you are trying to unbox them. If by chance you want to only take out one or two layers of tips from the pack, forget it. This is all but impossible because the lower layers get pulled up so that you can't re-nest the hundreds of tips back inside each other so they will fit back inside the small box.In short, I do like the tips, but the packaging hassle isn't worth it. I will not be restocking these.