Compatibility: fits 143, 236, 236R, 436R, 143R, 443R, BC4310 and G45 - Smooth manual pull start: This rope start provides constant tension and fast retraction for easy engine starting. It enables reliable ignition with fewer pulls, making it ideal for garden tools that must be ready to work quickly. - Reinforced inner spring: Equipped with a torque strong return spring and an impact resistant housing. It withstands repeated use and harsh work environments and maintains tension over long periods without sagging or failure. - Ergonomic grip: Contoured pull handle for improved comfort and control. Non slip design ensures a secure grip even with gloves, reducing fatigue during frequent starts. - Practical use scenarios: Starting small engines on lawn mowers, tillers, or brush cutters; quick starts in daily garden maintenance; reliable ignition in outdoor equipment stored in variable conditions.