Detailed Product Description JF102.1-1 Single pulley, D50mm ABS(BLACK) JF102.1-2Pairs pulley,D50mm ABSBLACK) JF102.1-3 Pairs of strings ... -D50mm ABSBLACK) JF102.1-6four of strings Pulley,D50mm ABS(BLACK) JF102.2-1 single Pulley, D50mm ABS(Color) JF102.2-2Pairs ... (Color) JF102.2-4three of strings Pulley,D50mm ABS(Color) JF102.2-5fours of strings Pulley,D30mm-D40mm-D50mm ABS(Color) JF102 ...