GRAND LED DART MAT BLACKEasy and responsive connectionEasy connection with GRANBOARD3s with a USB cable, LED action interlocks without time lag. Even with the mat alone, the LED shines in rainbow colors, creating a darts space at home like a stage.360-grain negotiation degree LED360-grain negotiation degree LED is placed on both sides of the mat.Enliven hits and awards with gorgeous light.Easy installation / self-maintenance The LED reel comes with Velcro so it can be easily installed on the mat.Also, even if you step on the LED and break it, you can purchase the LED reel as a repair part, so you can rest assured.Contents include: Mat, LED Strip x2, Circuit Box, USB Cable x2, Instruction ManualDimensions: 118 x 23.6GRAN Mat does not include a USB adapter.GRAN MAT requires a 2.4A (12W) or higher USB power adapter.