Traditional GSM is 390 Actual GSM is 213 Size: 18ft*12ftWeight: 4.3Kg Waterproof TarpaulineDurable and practicalHeat sealing edge with rings.High strength MaterialIt is a perfect sunshelter,easy to use and to operate.Widely using as a car cover,boat covers,machine covers and many other placesIt is rustproof which can be using for a long timeIt can apply in many different kinds of weatherSpecifications:Color: Orange And BlueMaterial: PESize: 18ft*12ftWeight: 4.3KgTo cover: Car transportation, Open storage, Field Camps, etc.Notes: For Heat sealing there will be 1.5inch less in each side.Thanks for your understanding.Specifications of 390GSM 18x12ft Waterproof Tarpaulin Outdoor Field Camping Tent Cover Canvas Car Cover Canopy Brand No Brand SKU 157784289_BD-1088824264WhatÂ’s in the box390GSM 18x12ft Waterproof Tarpaulin Outdoor Field Camping Tent Cover Canvas Car Cover CanopyVIEW LESS