"I recently brought home an unweaned sun conure, meaning I have to hand feed her twice day. I bought four of these syringe's at full retail price, thinking that four would be plenty to last until she is eating on her own. Unfortunately, all four broke within the first 3 weeks of me using them. In all four, the black part poped out and got stuck inside the syringe. I tried to fix them by spending time pulling out the black part and reattaching it to the pusher, but eventually they all popped out again. Also, the measurements all wore off in the first two weeks - and all I used was warm water to clean them. I ended up having to throw them all away and buying new ones elsewhere."