Built to be simple, adjustable and ultra-quiet, the T.R.U. Ball Bone Collector T-Rex delivers the repeatable performance and versatility you need to tag out. The pinch-style jaw reduces D-loop torque and loads quickly, while individual travel and sensitivity adjustment screws allow you to fine-tune it to your preference. The thumb barrel and teardrop feature knurling for better grip, and can be moved to multiple positions to suit you. Single-caliper jaw; Aluminum construction; Ultra-quiet design; Easy to load, pinch jaw onto D-loop; Individual travel and sensitivity adjustment screws with locks; Crisp trigger with hardened sear internal firing mechanism; Multi-positional thumb barrel and teardrop; Knurling on thumb barrel for better grip; Made in USA; Mfg. Number: TTR4-BK