Features: Brand New and High Quality Brand New and High Quality High-Quality Material: Made of high-quality metal, environmentally friendly and stable, durable and long-lasting. 2x Synchronizing Wheel, 2x Brass Insert Nut, 1x Full Set Screws, 2x Extruding Wheel, 1x 3 mm Pin, 1x Belt with Closed Loop, 2x Miniature Bearing, 1x 5 mm Pin, 2x Orange Small Spindle, 2x Single Flange Bearing, 2x Air Bearing, 2x Air Bearing. Connection First, 1x Spring + Plate. Easy to Install: Replace directly the old or damaged one. Usage: Excellent Performance, Comfortable and Practical, Suitable for Home and Professional Use. Lightweight Size: Portable and compact size, easy to store and carry, providing convenience. Specifications: Material: Metal Color: As shown in the picture Net Weight: 100 g / 0.22 lbs Note: Allow 1-2 cm error due to manual measurement. Due to differences between screens, the color may not reflect the actual object's color. Packing Contains: 2x Synchronizing Wheel 2x Brass Insert Nut 1x Full Set Screws 2x Extruding Wheel 1x 3 mm Pin 1x Belt with Closed Loop 2x Miniature Bearing 1x 5 mm Pin 2x Orange Small Spindle 2x Single Flange Bearing 2x Air Bearing Connection First 1x Spring + Plate