DESCRIPTION Comfortable anti pressure sores mattress with 130 chambers to avoid pressure sores and sores, with replaceable compressed air pump (compressor) and repair kit Maximum user weight: 130 kg Antibacterial air mattress, waterproof, with friction outer surface by to prevent slipping Dimensions of the mattress: approx. 200 x 90 x 6 cm of bed sores A cells and B cells are inflated by pump alternately with one cycle of 10 minutes. This innovative design is to refrain patient’s muscle from long-term fixed pressure at same position to prevent bed sore. More comfortable to the patient.