Safe and secure rat Catheter Access Buttons features Cannulock technology for the best catheter fit. Smooth barb safely "locks" with a catheter to eliminate disconnections. Soft Dacron felt for secure anchoring and rapid tissue ingrowth. Quick, clean access to 1, 2, or 3 catheters in rats, hamsters and guinea pigs. 22G catheter connection fits multiple vascular access catheters: jugular, femoral, carotid, gastric, and bile. Closed, split septum access to minimize introduction of pathogens. Magnetic tether attaches quickly and easily for a simplified connection. Lightweight metal cap protects the button for worry free group housing (sold separately). Built to withstand multiple insertions.