Features: Silver color: Made of 304 stainless steel material, and it can be heated instantly over an open flame Black color: Made of 304 stainless-steel material with black titanium coating, and it can be heated instantly over an open flame Light weight, suitable for out of doors Multi-scales within the bowl, which makes it relevant to home and open air performing as a measuring cup Small size, it may be stacked in multiple layers for carrying and storage Ergonomically designed handle, smooth to take, and can be hung for storage when not in use Comes with a storage bag for orderly storage, won't occupy too much space Specifications: Name: 160ml coffee cup Material: 304 Stainless Steel OR 304 Stainless Steel with black titanium coating (Optional) Capacity: 160ml in line with piece Size: as picture showed Weight: 57g in step with piece Packing List : 160ml cups *2, Storage Bag*1 OR 160ml cups *4, Storage Bag*1 Name: 210ml espresso cup Material: 304 Stainless Steel OR 304 Stainless Steel with black titanium coating (Optional) Capacity: 210ml per piece Size: as photograph confirmed Weight: 68g according to piece Packing List : 210ml cups *2, Storage Bag*1 OR 210ml cups *4, Storage Bag*1 Name: 310ml coffee cup Material: 304 Stainless Steel OR 304 Stainless Steel with black titanium coating (Optional) Capacity: 310ml consistent with piece Size: as picture confirmed Weight: 75g consistent with piece Packing List : 310ml cups *2, Storage Bag*1 OR 310ml cups *4, Storage Bag*1 Name: 450ml coffee cup Material: 304 Stainless Steel OR 304 Stainless Steel with black titanium coating (Optional) Capacity: 450ml according to piece Size: as photo confirmed Weight: 130g in step with piece Packing List : 450ml cups *2, Storage Bag*1 OR 450ml cups *4, Storage Bag*1 Note: The maximum scale is various with the particular maximum capacity( the particular maximum ability is bigger) Please confer with the picture