Size: A: 111.5 x 43 x 8mm; B:109.5 x 43 x 8mm. Semi-metal brake pads produced by OEM. Compatible With: DAYTONA DY 125 RS EURO4 2017/SILENCE Electric Scooters/S01 2021/S02 2021/S02 LS 2021 100% brand new (unused), complies with OEM specifications ; It is a product with excellent wear resistance and high cost performance, it is a product developed with emphasis on controllability and braking force, can be used as a spare part, so it is definitely recommended for customers who mainly ride in town. Excellent durability in different environmental conditions for long working hours. but the brake pads wear out as you use them, and they are consumable items that need to be checked and replaced regularly. Replace it with a new pad when the remaining lining material is 1 mm. Please make sure the model and year in the link matches before you buy Brand: AHLMaterial:Semi-metalSize: A. 111.5 x 43 x 8mm;B. 109.5 x 43 x 8mmCompatible with:DAYTONADY 125 RS EURO4 2017SILENCE Electric ScootersS01 2021S02 2021S02 LS 2021Notes:1.Please be sure to check the compatible model and year when purchasing.2.Detailed specifications and instructions for the product are not included.If you are worried about installation,please leave it to a professional for installation3.If you have any problems after receiving our products, please contact us immediately before leaving feedback or making a complaint; we hope that with good communication we can bring you a better solution