Light passes through multicolored glass and dapples the ground below. Small stones, beach glass, and handmade marbles surround a luminous grid of 3.5" cast glass tiles, all set in steel-reinforced concrete. The concrete is mixed with an acrylic additive to improve stain and weather resistance. White-washed frame and legs of aged western red cedar treated with driftwood stain; the end grain is sealed to prevent water damage. Stain- and weather resistant for use indoors or out. Weight: 140 lbs.