I needed to find hole centers for some projects I was preparing and found this 32 piece set. Well what you actually get is a bag with a bag inside that contains bubble wrap and another bag. Once positioned in the center, boom 8 more pockets. Agreed in advance? 8 sets of 4, 1 of each size, in separate small pouches. Do you want to reuse the bags after taking them apart? No, they are too small and tear like cloth. The center markers themselves are surprisingly mediocre. Milling lines, uneven finish, uneven placement of cone tip (some flatter, some pointed). They are also the wrong size in diameter, making them a poor fit. Despite all this, they are useful. They'll do the job as long as you don't have to flatten them or something because they're just too rough to have the consistency you want out of a product.