General description 3D printer accessories designed for use with 2020 aluminum profile V-Slot systems. This wheel kit includes aluminum profile pulleys that enhance the functionality of your 3D printer setup. Technical specifications Type: Wheel Kit/Wheel Material: Aluminum alloy Color: Black Package Contents: 2 Aluminum Profile Pulleys Measurement allowed error: +/- 1-3 cm Other information Note: Light shooting and different displays may cause the color of the item to differ slightly from the real thing.