uxcell 9 Tooth Roller Sprocket B Type, 25 Chain, Single Strand 1/4" Pitch, 8mm Bore Black Oxide C45 Carbon Steel with Set Screws for ISO 04C bee A practical necessity for you

A practical necessity for you

comfortable to wear and protect your health from radio electromagnetic radiation

prevent visual fatigue

5mm) Port and Quick Disconnect Latch

uxcell 9 Tooth Roller Sprocket B Type, 25 Chain, Single Strand 1/4" Pitch, 8mm Bore Black Oxide C45 Carbon Steel with Set Screws for ISO 04C bee A practical necessity for youuxcell 9 Tooth Roller Sprocket B Type, 25 Chain, Single Strand 1 4" Pitch, 8mm Bore Black Oxide C45 Carbon Steel with Set Screws for ISO 04C Product Features Package Content: 1 x Chain Sprocket, 2 x Set Screws Chain Sprockets are normally mounted in a fixed position on a fixed shaft. Round hole with 2pcs Set Screws at 90 degrees. The shaft can be fixed well, which is convenient to use. The chain sprocket should not rotate at a greater speed than is