TRU Ball Angled Knurled Thumb Pin TRU Ball Angled Knurled Thumb Pin $22.00 Add Review Ask Question Product Description Reviews (0) Questions Angled TRU Ball thumb pin designed for use with TRU Ball releases Currently there are no reviews for this product. Currently there are no questions for this product. Similar Products Ultraview The Hinge Metal finger 3 Finger $32.00 View... Tru-Fire Chicken Wing Wrist Release $185.00 View... TRU Ball HBC Honey Badger Claw QuickSilver 3 finger release $370.00 View... Carter Convertible Release $350.00 View...