CupsCo Classic 8oz Cup 4-pack Stainless Steel New 8oz size is ideal when less is better. It's a versatile size for juice, wine, water, cocktails and the smaller size is ideal for kids. 100% Type 304, 18/8 Food-Grade Stainless Steel, BPA-free, Phthalate-free, Lead-free (3rd Party Tested) Beautiful hand-polished Mirror Interior Dishwasher Safe, Stackable and Packable Shatterproof - goes where glass cant, Lifetime Durability UPcyclable - should tragedy strike and your cup is run over by a steamroller, it can be converted into material of equal or higher quality.