Features:each cushion measures 12"x12", 12 packs provide a large coverage of approx. 11.6 square feet.shock absorbent soft floor mats, anti-skid and wear-resisting.made from environmental-friendly EVA material, water can not penetrate it easily,water-proof.interlocking design for easy assembly or disassembly.provide a cushion to hard floor surfaces in gyms, at trade shows, schools, daycares, playrooms and baby rooms, etc..note: indoor use only. As the shooting light, color displays of physical products and photos may have some differences!specifications:material: EVAcolor: black / grey (optional)size: 30*30*1.2cm/12*12*0.47inpackage size: 30*30*14.4cm/12*12*5.67inpackage weight: 830g/29.28ozpackage list:12 * floor mats. Material: plastic