reflective heat, energy effcient Tip-over protection Automatic rolling function Automatic timer function With RC Packing: 1Pc/Color-Box Box Size.: 31.5¡Á31.5¡Á72cm N.W.: 3.5kg G.W.:4.5kg Quantity of container load: 20¡¯/40¡¯:390pcs/838pcs 40¡¯HQ: 950pcs