Applicable:Threaded central ,ISCG03/ ISCG05 general,32T-38T Chainring Using high-strength aluminum alloy, CNC machining, light weight, high strength, strong and , guide rail Provides a limit for the chain to prevent the chain from falling off the chainring during riding. The chain guide does not come into contact with the chain when in use. It is suitable for the single-plate chainring system of the front gear shift, and does not need to be equipped with a guard plate. The baffle plate below can effectively block some collisions from below. Name:Bicycle Single Disc Chain Guide Model:ISCG03/05 Chain Guide Size:205mmx200mmx5mm Adapter Size:68mmx70mmx4mm Colour:Black & Red Material:Metal Package Contents: 1 x Bicycle Single Disc Chain Guide Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.