Compatible With: This chain sprocket cover is specifically designed to fit for MS170 MS180 017 018 MS210 MS230 MS250 021 023 025 chainsaws. Part Number: The part number for this cover is #1123-640-1705, that it meets standards and matches the equipment in terms of specification and size. Effective Protection: The sprocket cover provides effective protection by keeping the sprocket clean and safeguarding the chain wheel from damage, resulting in smooth of the chainsaw. make replacing necessary parts quick and easy. Design: Crafted from sturdy ABS plastic, this chain sprocket cover is built to last and withstand the demands of regular use. Product Name: Chain Sprocket Cover Set Fitment: for MS170 MS180 017 018 MS210 MS230 MS250 021 023 025 chainsaw Part Number: 1123-640-1705 Number of Pieces: 1 Set Color: White Material: ABS Plastic + Metal Package Contents: 1 * sprocket cover 1 * side tensioner 2 * nuts and studs 1 * sprocket bearing retainer 1 * bumper nail 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.