[PARAMETER]: Overall Size: 15 x 15 x 8 mm / 0.59 x 0.59 x 0.31 inch (L*W*H); Color: Silver Tone. [THERMAL PAD] This heatsink come with the thermal conductivity adhesive, help to dissipate heat, easy to use, strong stickiness. [APPLICATION] The heatsink is a special tool for cooling chips, stepper motor driver module and other small electronics that didn't come with any cooling. [MATERIAL] Aluminum alloy, great function for heat dissipation. [OPERATION] Easy to install, it only take seconds to install.