K & S makes great tubing, rod and sheet stock for hobbyists and DIYers, but all of those pieces have ends. Knowing that hobbyists and DIYers are creative folk who love bits and pieces and hate waste, they offer big ol' (and little ol') bags of end scrap. Two sizes of bags to choose from, for all of those projects you will definitely have in the future, not to mention the countless ideas you'll get when you see the assortment you receive. Please Note: Since these bags are full of cut ends, no two bags will be the same and the included materials will always vary bag to bag. #320 is a smaller sized tubing & rod only assortment and #707 is nearly a pound of larger sized flats, tubes & rods in a larger bag.