- Recessed cover design to accommodate 1/2" (12mm) track surface
- Constructed of 1/8" aluminum sheet metal
- Spacers to block out slots when filling tray with poured track surface are included
- A ledge around the perimeter of the sand catcher trench is required for covers to rest on
- Standard size is 18" x 36"; special lengths are available between 18" and 35"