Hollow Out Design The hollow design at the bottom maximizes air flow, avoids safety hazards caused by overheating, more secure. Easy to Install Matted with non-slip pads and fixed with clips under the table, no drilling and no adhesives required for installation, and will not damage the table. Convenient Cable Holder Comes with cable holders clips to better organize the charger, the clips have 3M tape on the back, don't need extre adhesives for installation. Arrange Cables The cable can be fixed at the bottom of the cable tray with nylon ties, so that the cable arrangement is more beautiful and tidy.