... 4 in 1, skidproof design, four options for bottom. Dance mat Description:1. Made by nontoxic marterial.2. PS2/USB/XBOX ... degrees high, 2mm high-density black EVA, 2.5mm floor mat 4pcs, 20mm thick black pearl wool.5. More patterns, interfaces ... QTY./40HQ:11424pcs4. Color box and neutro-packing. Newest dance mat