1. Upgrade For your 2 with our high-quality dual timing pulleys. 2. Each pulley features 20 teeth and is compatible with a 6mm wide synchronous belt, ensuring precise and smooth motion transfer. 3. Crafted from aluminum, these pulleys are designed for long-lasting performance. 4. Enhance your 3D printing experience with improved accuracy and reliability. Specifications: Name: 20Teeth Double Timing Pulley Outter Diameter: 16mm Application to width of Belt: 6mm Tooth type: 2GT / Number of teeth: 20teeth Colour:silver Material:aluminum Aperture:5mm The actual product may have slight color difference or difference, which not affect the use Package Contents: 1 * pulley 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.