Features: Easy to install and operate. This is the lawn mower gearbox assembly set The set are include top pushing pad, board, nut, maintenance screwdriver. Perfect match with the original one. Stable characteristics and high reliability. Specification: Size: Stop pushing pad: (Dia x H ) 8 x 2.5 cm / 3.15 x 0.98 inch (appr.) knight board: (Dia) 4 cm / 1.57 inch (appr.) Collar nut: (Dia) 2cm / 0.79 inch (appr.) Screwdriver Length :12.5cm / 4.92 inch (appr.) Package List: 1 x Stop pushing pad 1 x Board 1 x Collar nut 1 x Screwdriver Features Easy installation and operation: Get your lawn mower up and running quickly with this gearbox assembly set. No complicated steps or tools required. Complete set of parts: Includes top pushing pad, board, nut, and maintenance screwdriver for a hassle-free assembly experience. Everything you need in one Package. Perfect compatibility: Designed to perfectly match the original gearbox assembly, ensuring optimal performance and functionality. Stable characteristics for reliable use: Enjoy consistent and dependable operation with this high-quality gearbox assembly set. Professional-grade reliability: Trust in the durability and long-lasting performance of this gearbox assembly set for your string trimmer.