About this item PUZZLE MATS SET - CONTAINS 18 SQUARE PADS WITH STRAIGHT EDGE FOR OPTIMAL FLOOR PROTECTION - The foam pads are sound absorbing, shock absorbing, thermally insulating, waterproof. The size of each mat: 11.81 *11.81 inches, the area after assembly: 16.86 sq.ft. HIGH DENSITY EVA FOAM CUSHION - Ideal floor for children's room, playroom, classroom, nursery, playgym, gym, exercise equipment, garage, etc. FLEXIBLE ADJUSTMENT, EASY TO COMBINE - Interlocking puzzle playmats are…