TRU Ball Stalk'R Thumb Release Black. The multi-positional thumb barrel allows archer's to position the barrel in an optimal position for performance. The release also features a comfortable 4 finger handle and built-in lanyard. Specifications for TRU Ball Stalk'R Thumb Release: Manufacturer: TRU Ball Color: Black Age Group: Adults Features of TRU Ball Tru Ball Stalk'R Thumb Release: Trigger adjustability Separate travel and sensitivity adjustments Multi-positional thumb barrel 4 finger handle Built-in-lanyard Package Contents: TRU Ball Tru Ball Stalk'R Thumb Release TRU Ball TSK4-BK: Stalk'R Thumb Release Black