I have plates in kilos; 2x25, 2x20, 2x15, 2x10, 2x5, 2x2.5, 2x1.25, 2x0.5. You don't need the 15s (35lbs) but you must replace them with something to make up the weights around 100kg (probably 4x20kg is the way to go, but I got 15s because it was cheaper in a set). I think the 0.5s are useful for micro-loading the press; it can be difficult to go up 2.5kg (5lbs) a week. I paid extra for coloured bumper plates but I think it was a good idea; it really helps avoid loading mistakes which can easily injure you.