Fit for GY6 50cc 125cc 150cc 4-stroke Engines Scooters, ATVs, Go Karts, Mopeds, Quad, Pit Bikes, Dirt Bikes,gy6 139qmb 152qmi 157qmj engines · Package includes Material: Made of sturdy material, more durable, and long service life. Note: Please allow 2-3mm differences due to manual measurement. DIMENSION: Rubber Mounts Thread Size: M4; Thread Length: 10mm / 0.39; Rubber Size: 15x20mm / 0.59x0.79(D*H) Easy and quick replacement. Designed for vibration and noise control. DESIGN: Rubber mounts shock compact structure, good stability. Reduce noise. Rubber Shock Absorber Buffer Car Suspension Rubber Buffer Shock Absorber Comfortable Buffer - Cylindrical Mounts, Rubber Mounts Anti Vibration Mounts ENET 4 X M6 Anti Vibration Rubber Bobbin Mounts 20x10MM Male Boat Car Damper Vibration Damper 4pcs M4 Car Anti Vibration Rubber Isolator Damper 15x20mm Rubber Bobbin Mount Shock Absorb Mounts for Compressors VV Engines The simple geometrical design supports dynamic performance and stability under lateral (sideways) forces. APPLICATION: Rubber mounts are mainly used for bicycles, enginers, gasoline engines, water pumps, and so on. Reduce noise. Protect the normal work of the body, vibration and noise reduction effect is obvious. MATERIAL: The rubber shock absorber is made of metal and rubber, durable material for long time service. APPLICATION: Rubber mounts are mainly used for bicycles, enginers, gasoline engines, water pumps, and so on. See more product details Protect the normal work of the body, vibration and noise reduction effect is obvious. MATERIAL: The rubber shock absorber is made of metal and rubber, durable material for long time service. Please confirm the size before purchasing,thank you!