184-549, RS PRO, RS PRO Timing Belt Pulley, Steel 15mm Belt Width x 5mm Pitch, 12 Tooth, Brand RS Pro, Number Of Teeth 12, Pitch 5mm, To Suit Belt Width 15mm, Outside Diameter 17.96mm RS PRO Timing Belt Pulley, Steel 15mm Belt Width x 5mm Pitch, 12 Tooth