Anti-friction Colorful PU Foam Board: 1.ventilated, shock-absorption 2.sweat ... function of ventilation, sweat-absorbing, soft, no distortion, anti-mildew, anti bacteria and anti smell… Now, it’s popular to all-known brand ... of its reasonable price but that its special advantages. 2.Anti-friction Colorful PU Foam Board:Physical CharacteristicsDensity(kg/m3)110 — 120Hardness ...