Heavy duty commercial grade 3 hole plate weights. With the 3 hole design they allow for easy handling and can also be used for certain exercises. This combo pack comes with (4) 45 lbs, (2) 35 lbs, (2) 25lbs, (2) 10 lbs, and (2) 5 lbs. It is a total of 330 lbs. Custom combos cannot be made. The stack can also be doubled up to 660 lbs for a bit of a break.