Wave Gold Endodontic File 21mm #40-0.07 (Large) 3/Pk. Reciprocating (counter-clockwise: 150°, clockwise: 30°) with convex triangular design. Nano-coated surface can be autoclaved and has stronger fatigue resistance. More flexible than most other rotary Ni-Ti files. Tip Size: Ø40 / Taper: 0.07% (Black). Made in South Korea.**Compatible with Wave One and VDW's Reciproc**.