A cooling-pad(cushion) made in PCM(phase change energy storage material) can keep temperature constant for 8 to 10 hours. The PCM looks like flocculent white snow and have some flexibility, and are prone to plasticity. The PCM are suitable for applying in energy-saving buildings, household hot and cold pad, cooling cushion/mattress, heat bags in health care field and use to, plastic-covered tunnel temperature insulation, and camping equipment etc.. This cooling-pad uses high-tech patented phase change energy storage materials as filling material, environmental PVC compound fabrics as packing. And it does not contain preservatives, each process have been inspected strictly, so this products are safety and reliable.  The features for cooling-pad:1.100% environmentally friendly materials, color white, odorless, sand-like, non-toxic non-corrosive, can be used for medical ice-pad, home,& car. 2. No flow of liquid, no leak in phase change. 3. Recycling use guaranteed the life time for 5 years. 4. Storage capability strong, an ice-pad of 400 grams keep cool for 4 hours. 5. Phase change temperature of 31-32 ° C make cool and comfort, smoothie soft and moderate flexibility.6. Summer indoor natural temperature (30-31°C) starts storage, no air-conditioning, no electricity needed in storage. 7. Cold fast slow-release build(storage fast, release slow ), no sub-cooling degree. 8. OEM services are available (temperature can be adjusted according to regional differences) Dimensions (width X length)available:29X37cm (inner-built-PCM400 grams, suitable for laptop)31X40cm (inner-built-PCM400 grams, suitable for laptop)37X37cm (inner-built-PCM400 grams, suitable for cushion37x40cm (inner-built-PCM600 grams, suitable for cushion)