4x4 Bison® Ceramic Tile - Gloss White, 4.3125" x 4.3125" X .25"�, Gloss with spacers. The glossy ceramic tiles provide a brilliant canvas for your artwork and photo reproduction. Excellent tiles for architectural applications. Production for these tiles requires the use of an 1/8" Green Heat Conductive Rubber Pad and a Nomex felt pad, 1/8" thick and at least an inch larger than the tile, sold separately. This tile does not have lugs.