Excellent 3D Printer heat sinks and the adhesive: Work well for 3D Printer Reprap MKS Mendel Gel stepper Driver and other motherboard. | These sinks are beloved by our favorite engineers for their low cost, ease of use and low thermal resistance!. | Size LWH: 10 x 10 x13 mm/ 0.39" x 0.39" x 0.51". | Material: Aluminum, very light and easy to install, | Package includes: 10 Pack Heatsinks