The T4 Flipper is a collaboration by Jason Brous and Jason Moriel-Riboloff from Tanium Design. This knife features an acid washed D2 steel modified drop point blade with a flipper and recessed thumb groove for thick one hand opening. The T4 has a ball bearing pivot system for smooth performance. The handle has G-10 scales that are milled with angled grooves to keep this knife secure in hand. The T4 uses a proprietary designed backspacer that makes it easier to clean your knife while maintaining the strength of a solid back spacer. The frame is skeletonized stainless steel with a liner lock tab.