... double roll refrigeration cover save energy safe,tought and relible no condensation antibiosis,mildew proof,anti-condension Polycore Technology showcase cover ... constant-- Can be retrofitted without problemThe night cover material is made of anti-freezing, ... cover size,width within 2000mm,length within 2500mm.Fabric night cover size,width within 2000mm and 2500mm,length within 2500mm. double roll cover ...