O-ring syringes will not stick and aspirate the animal Smooth, accurate, and rehabber-approved! Made with medical-grade polypropylene, these high-quality syringes are pet-safe and reusable. The syringes contain a silicone O-ring that provides smooth and controlled operation. Perfect for feeding or administering medicine to small animals. Medical-grade syringes No latex; no rubber No BPA or DEHP Easy to clean - wash gently with warm soapy water Available in Slip-TIp and Luer-Lock Made in Denmark Henry’s signature syringes feature easy-to-read markings on both sides for accurate doses. Note: this non-toxic ink is not permanent - you can wrap the barrel of the syringe with clear tape to preserve the markings longer. Compatible with Henry’s Easy-Grip Nipples. Note: 5 mL Slip-Tips are not compatible. *These syringes have a catheter tip.