Optimized Performance: Ensure your 3D printer operates smoothly with our X-axis, Y-axis, and Z-axis synchronous belts. Designed specifically for the Kobra 3 S1 models, this kit provides the precision and durability needed for optimal printing results. Durable Construction: Made with rubber, these timing belts resist stretching and ensure long-lasting performance, reducing the need for frequent replacements and maintenance. Easy Installation: This kit includes everything you need for a hassle-free setup. Detailed instructions are provided to guide you through the installation process, making it suitable for both beginners and experienced users. Color: As shown. Material: Rubber. Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Package Contents: 1 x X-axis synchronous belt, 1 x Y-axis synchronous belt, 1 x Z-axis synchronous belt. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.