MBC Power VILLAIN Add-on Change Plate 0.5kg plate x 2 497g and 497g Not specifically for anything... Weight stack... For 50mm barbells, you could put them on the inside... This is the post. I'm not considering lowering the price. It's a bonus if you purchase a barbell for over 20,000 yen. The last photo is for reference, and of course, it is not included with this product!