1Fitment: The starter clutch removal tool fits for GY6 125cc 150cc 152QMI 157QMJ engine based 4 stroke Atv scooter. And it fits for Moped, Atv, Quad, 4?Stroke Scooter. 2Material: The starter clutch removal tool is made of heat treated premium metal, it is of high strength, sturdy construction and long durability. 3Important Data for You to Check: Large end inner diameter approximates 24mm / 0.94 inch; Large end outer diameter approximates 30mm / 1.18 inch. Please compare your old part to make sure the clutch lock nut spanner socket is the one that you need. 4Comes with 4 Pin Lock Nut Spanner: This product is a 4?pin socket clutch nut tool, each end has 4 pegs; One side is 20mm inner diameter and another side is 24mm inner diameter. 5Easy to use: With four claws and square connection, the starter clutch removal tool is easy to match the position and tools you are handling. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin