We are manufactory,our products are cheap and good quality Our product range:try square,angle square,plumb bob,vernier caliper,protractor,folding ruler and kinds of other measuring tool Features:1) Cast iron plumb bob2) Type A, C, E (chrome plate finished); Type B, D, F (spray-paint finished)3) Size: 100 - 4,000gInner packing: 1pc/opp bag, 2pcs/inner box Plumb Bobs