Behoo 1Pcs U Groove Pulley Guide Pulley Rolling Bearing U Groove Roller Wheel 5x25x16.5mm For Driving Mechanical Accessories

100 New and High Quality. Material: plastic metal. A1 Size: ID 5mm 0.2 in, OD 25mm 0.98 in, Width 16.5mm 0.65 in. A2 Size: ID 4mm 0.16 in, OD 25mm 0.98 in, Width 16.5mm 0.65 in. Color: as pictures. Package Included: 1 pcs. 100 New and High Quality. Material: plastic metal. A1 Size: ID 5mm 0.2 in, OD 25mm 0.98 in, Width 16.5mm 0.65 in. A2 Size: ID 4mm 0.16 in, OD 25mm 0.98 in, Width 16.5mm 0.65 in. Color: as pictures. Package Included: 1 pcs