B3 Archery Coop Pro Release Brass. The innovative hinge-style design features integrated thumb pegs hourglass tapered handle and an auto-locking band for hook return. The Coop also features our new patented micro adjust sear system. Specifications for B3 Archery Coop Pro Release: Manufacturer: B3 Archery Color: Brass Age Group: Adults Features of B3 Archery Coop Pro Release: Hourglass 3 finger tapered handle Innovative hinge style design Auto locking hook return Integrated thumb peg 4 sears included Package Contents: B3 Archery Coop Pro Release B3 Archery COOP-PRBR: Coop Pro Release Brass