Glow in the dark ceramic tile.

Dimensions 4"wide x 4"long x 3/8" thick Tile Weight: 1.8 oz. per each
Dimensions 6"wide x 6"long x 3/8" thick. Tile Weight 6.0 oz. per each
Dimensions 8"wide x 8"long x 3/8" thick. Tile Weight 13.0 oz. per each