100% new,never been used and effective Chainsaw Motor Cylinder Size:42.5mm bore Professional installation is highly recommend.(No Instruction Included) Name:Cylinder Piston Cylinder Bore Size: 42.5mm Pin Diameter: 10mm Model Number: for MS250 MS230 023 025 Part Numbers: 11230201209, 11230300408, 95030030340, 96380031581, 11230212500, 1123 020 1209, 1123 021 2500, 1123 358 7701 Fitment:For 025 023 MS250 MS230 Chainsaw Colour:As Shown Material:Metal Package Contents: 1SET x Carburetor cylinder assembly 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.