Material? Rubber(42-43% with pure nature rubber material-not recycling material), steel Color? 4 different colors asst Minimum Order Quantity? 20 sets Payment Term? L/C or T/T Includes? 10kg/pc(green)Olympic Rubber Plate-2pcs (with ductile iron core for sturdy construction), 15kg/pc(yellow)Olympic Rubber Plate-2pcs(with ductile iron core for sturdy construction), 20kg/pc(blue)Olympic Rubber Plate-2pcs, 25kg/pc(red)Olympic Rubber Plate-2pcs, B-OB-220 220cm Olympic bar-1pc, CL-CO-2.5K Pressure Ring patented Olympic Collar-2pcs Package/Packing? 1 set/separate different ctns, then in wooden case, N.W.165kg/G.W.205kg