Product Name:Fanless laptop cooling padModel No.:PCM3628BLMaterial:Outlayer:PolyesterInerlayer:PVCtemperature constant time:Be able to work around 8 hours continuously (with laptop temperature at 40 C.)Size:30*22cmWeight:0.45kgNotebook available size:10inchFilling material:Phase change materialMelting temperature:35 CentigradeCrystallization temperature:27 Centigr adeFeature:Environmental friendly:Non-toxic material without power supply, environmental friendly and economical.Heat-shielding design:Protect your body from unwanted heat from your laptop so you can work or play comfortably with your laptop on your leg.Soft, air-mesh fabric:The underside of the comfort lapdesk feels great on your legsWarning:Do not put this product under strong sunlight. we also can provide OEM service for customer.