Main parameters: Material: pvc Color: grey Ordinary size(w*l): 3*8m(118*315"), 4*8m(157*315"), 3.5*10m(138*394"), 3.5*12m(138*472"), 3*12m(118*472"), 4*12m(157*472"), 4.5*15m(177*591"), size can be customized, max. Size can reach up to 12.5*25m(492*984") Thickness: 12mm Motor system: Input voltage: ac 110v-230v Output voltage: dc 24v B. Main advantage: A. Safety, solar, and winter cover, all-in-one. B. Pool chemicals last twice as long. C. Saves up to 70% on heating costs. D. Can keep 8 to 10 degree of normal temperature. E. Reduces pool-cleaning time. F. Extends the life of pool equipment. G. Reduces pool water evaporation. H. With well glossiness. I. Long material & durability. J. High uv stability. K. High floating capacity. L. Temperature stability up to 130 degree. M. Protective, anti-resisting, anti-slip, anti-press, anti-dust, waterproof, etc. C. How it works in winter: 1. Absorbing the solar from the sun; 2. Turning the solar into energy; 3. Heating the water; 4. Keep the water?s temperature. Picture display the water temperature range under bore pool cover within 48 hours. Packaging included: 1 * solar pool cover 1 * remote control 1 * motor 1 * motor bracket 1 * reel 1 * control box 1 * ac to dc power converter 1 * bag of other accessories