New Unopened In original box Amec FHP Sheave, 1 Groove, OD 4.45Light Duty QD Sheave For "4L", "5L", "A" & "B" V-Belts. Number of Grooves: 1. Pitch Diameter("5L" & "B" Belts): 4.10". OD: 4.45". Material: Gray Cast Iron. Statically Balanced. Painted and Baked Enamel Finish. Requires "H" Bushing