Product Description: Advantages: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Made of high-quality materials, good quality and durable.4.Applicable brand: Replcement for Stihl.5.sBrand replacement models: Replacement for Stihl,Replacement for MS240,Replacement for MS260,Replacement for MS240 260.Replacement number:1121 790 9901 (Replacement for Tank Buffer)1121 790 9912, 1121 790 9909 (Replacement for Annular Buffers)1125 791 7306, 1125-791-7310 (Replacement for Buffer Plugs)1121 791 6110 (Replacement for Buffer Screw)Specifications: Material:Plastic+IronColor:Black+White Shock Absorber with iron Size:4.3x3x1.7cm/1.69x1.18x0.67inch(LxWxH)Round Shock Absorber:2.7x3.1cm/1.06x1.22inch(LxDia)Weight:76g Package include:2 x Round Shock Absorber1 x Shock-absorbing Rubber Sleeve2 x Shock Plug1 x Screw1 x Nut