ProSkinz are smaller sized JigSkinz. They come in 4 sizes: Small(70x70), Medium(75x85), Large(90x100) and X-Large(140x85). These measurements are in millimeters and are (length x circumference). These sizes fit lures like Rat-L-Trap, 1.5 cranks, 2.5 cranks and topwater spooks. They can be bought in mixed packs where you get 2 of each size or single size packs where you get all the same size. Pick the option from the drop down menu. Either way you will get 8 total skinz.