... 50cm or 40cm. ,D-rings grommets is optional.Other Waterproof, fire resistant, UV protected, rotproof ,oil resistance, easy to clean ... This cotton canvas tarps, canvas tarpaulin is used for truck cover,truck tarps,trailer cover,trailer tarps, machine cover,lumber ... protection shield, trailer cover, instrument shield, equipment shield ,tent,truck cover ,container cover, furniture cover,chair cover etc.5. ...