New Unopened In original box Amec QD Sheave SDS, 3 Groove, OD 6.0Heavy Duty QD Sheave For "3V" Belts. Number of Grooves: 3. Pitch Diameter: 5.95". OD: 6.00". Material: Gray Cast Iron. Statically Balanced. Painted and Baked Enamel Finish. Requires "SDS" Bushing