Compatibility & Durability: Crafted specifically for multiple models including CMCST900, CMESTA900, and CMESTE920. The improved trimmer crafted from sturdy nylon adds to its , ensuring repetitive use with minimal wear. Advanced Blade Design: The upgraded weed eater also includes 10 robust polycarbonate blades designed for faster cutting. This selection provides a significant enhancement over traditional trimmer wires, combining speed with durability for optimal performance. Comprehensive Kit Contents: This package not only equips you with a new trimmer and blades but also includes 4 sets of screws and a tool wrench for easy assembly, ensuring a seamless installation process and immediate readiness for use. Effortless Installation: The trimmer features a push-to-lock design that snaps securely into the stringer socket without needing an adapter. Integrated side push buttons further simplify the mounting process, making it user-friendly even for novices. Maintenance Guideline: Ideal for horizontal weed cutting. It is recommended to use blades only on suitable surfaces as vertical cutting might cause the blades to wear or break prematurely. Switch to trimmer spools for vertical or edging operations to maintain blade integrity. color: red material: plastic The actual product may have slight color difference or difference, which will not affect the use Package Contents: 1 x Trimmer 10 x Blades 4 Set Screw 1 x wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.