[Ideal Use]: Gearis electric chainsaw drive sprocket is compatible with Remington/MTD 107713-01 and 717-04749 electric chainsaws. Dimensions (Diameter) x (Height): 8.9 x 3.5 cm (Approx.) [High Quality Material]: The electric chainsaw drive sprocket is made of high quality ABS, sturdy and durable. A great and practical replacement accessory. Dimensions (diameter) x (height): 8.9 x 3.5 cm / 3.5 x 1.4 inches (approx.) [Easy to install]: The electric chainsaw internal gears are easy to install, and all necessary components are easily installed. [Perfect replacement]: The internal gear is a practical accessory for lawn mowers, hedge trimmers, and chainsaws, saving you the cost of repurchasing the machine. [Practical accessories]: The sprocket has 55 internal teeth, 6-tooth metal chain, professional manufacturing, and excellent performance. Please check the pictures and dimensions carefully before purchasing.