ITEM NAME:4Pcs NEMA17 Stepper Motor TL-Smoothers with Cables + 4pcs Stepper Motor Description: Used to quieten the noise & improve the print quality of your 3D printer. The kit includes 4x vibration dampers, 4x heatsinks with adhesive thermal backing, 4x motor smoothers, 4x connecting wires. Suitable for NEMA17 stepper motor. This kit will allow you to upgrade 4 stepper motors to make them near silent. With the included heatsinks the stepper motors should not overheat in any but the most demanding environments. Made of premium material with fine workmanship. Package Includes: 4 x Vibration Dampers 4 x Heatsinks With Adhesive Thermal Backing 4 x Motor Smoothers 4 x Connecting Wires SKU: DMO0013792477021513.The kit includes 4x vibration dampers, 4x heatsinks with adhesive thermal backing, 4x motor smoothers, 4x connecting wires. Suitable for NEMA17 stepper motor. 4 x Motor Smoothers. This kit will allow you to upgrade 4 stepper motors to make them near silent.