UltiCareVetRx U-100 Pet Insulin Syringes, Comfortable & Accurate Dosing of Insulin for Pets, Compatible w/Any U-100 Strength Insulin, Size: 3/10cc, 31G x 5/16’’, w/Half Unit Markings, 60 ct Box

We have purchased this item 15 times. This last purchase, April 27, 2025, was different. The size of the white cap is slightly larger. But honestly, no one cares about the size of the cap. What I'm reviewing today is a change in the product itself. Now, the puller is very loose. It does not pull an even amount of the cat's insulin. I have to push the insulin back in the bottle and pull again, multiple times, to get it right. But then something else worrisome happens...the puller, on it's own, slides to push the insulin out of the syringe. I tried multiple syringes from different bags in the box. They all have the same problem. As if life is not difficult enough as it is, here is a product that we relied on and purchased 15 times, and now I have to find and try a different brand. If something has worked forever, why do companies make a "new and improved version" that is significantly worse than what they were making. For the first 14 purchases, I would give this 5 stars. For the last box, 0 stars. Thus the 1 star review - as a warning to fellow purchasers that they have changed the product and not for the better.Edited on 5/14/24: This seller has outstanding customer service. They saw our review and right away emailed us. They have not only refunded our purchase, but they are sending a replacement and investigating the lot. Sometimes mistakes happen in production, this happens, but to have a company reach out and make things right is outstanding customer service. We are changing our review to 5 stars. We will stay a loyal customer to this company.

Update- company reached out and offered a full refund, so I will continue to buy these and hopefully the issue was only with that specific lot. The other boxes have been great.Original review- These needles were great, but the last box has been full of ones that I couldn't use- either the rubber stopper inside won't go all the way to the 0 line or the needles are already bent. I've also had 2 that seemed dull as they didn't pierce the skin well at all. It's very disappointing as these have been working so well for my diabetic cat, but if I didn't use a caliper for dosing I wouldn't have consistent insulin dosages.

I have ordered this product over the past year and never had any issues with it. The product is priced reasonable and meets the requirements that was provided by my vet. The needles are the right size for my cat's insulin injections and it does not bother him at all. The item has shipped quickly and has arrived arrives as described.

Update: excellent customer service they read my review and reached out to me with the full refund. I went ahead and ordered a new box and they are perfect. Whatever was going on a manufacturing it's hopefully is fixed either way I really appreciate the excellent customer service. That's hard to find these days.Something is going on with the manufacturing. I have purchased lots of these for my diabetic cat. The last few boxes have been defective. They have been either loose fitting cause lots of air bubbles that are impossible to get rid of or two this box - the needle keeps bending :( poor kitty - stinky fur shots suck and insulin is expensive to waste. Hope the figure out the issue.

Have this on Autoship and have had no problems with the first several orders but this last box has been nothing but troubleThe seal on the syringe is not airtight and it is impossible to draw the insulin...nothing happens. Have had to discard several syringes until we find one that will work. We have a new box arriving in 3 days if that is the same we will send it back and cancel the autoship. Vendor got intouch and made everything right and is replacing the box that we had issues with. Because of their outstanding customer service and because the most recent box that arrived on Autoship has had no issues this company gets 5 stars. Problems arise but it is how the company deals with them that makes the difference!

I have this delivered every 3 weeks because I have a diabetic cat. Occasionally, there will be a needle that's crooked, but that's few and far between and hasn't happened in the last couple boxes. The draw on the syringes does often push insulin back into the phial (other reviewers mention this), but I usually draw back a little and everything works out. The half-unit marks are very nice, as well.The "bulk bag" packing, where there are 10 syringes in each package in the box, is fine; however, I would prefer (for boarding, travel, etc) if they were individually packaged. But I will continue to order/have these delivered because they are easy to use and the differences between lots are easy enough for me to deal with.

My wife loves these as she says they don't bother our little diabetic mini fox terrier. Super fast shipping and we've never had any issues over the past year using these.