A = 20T B3 With T (20tooth width 6mm bore 3mm with Teeth)
B = 20T B4 With T(20tooth width 6mm bore 4mm with Teeth)
C = 20T B5 With T(20tooth width 6mm bore 5mm with Teeth)
Please Choose the type you want.
1 x Timing pulley
BIGTREETECH GT2 Idler Timing Pulley 3/4/5mm Bore 20 Tooth Wheel for Prusa i3 MK3 GT2 Belt 3D Printer Parts
Type A / Type B 5Pcs / Type C /
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