Rocksax drink bottles are the ideal 'health conscious' accessory for anyone - fill them with cold water and they keep it cool (up to 24hrs), fill with coffee and they keep it hot to warm (up to 12hrs). Made from 18/8 Stainless Steel (medical grade steel basically) Vacuum insulated - keeps stuff hot or cold 500ml capacity I'm afraid you have to wash in the sink - not dishwasher safe, sorry guys! Cool must have or present. Color Black Capacity 500 Milliliters Brand Name Rocksax Model Name Rocksax Green Day Drink Bottle - American Idiot Unit Count 1.0 Count Bottle Type Insulated Bottle Item Weight 11.99 ounces Manufacturer Rocksax Model Number NEWBOGRDAI01 Material Type Stainless Steel Item Type Name Insulated Bottle Number of Items 1 Additional Features Insulated Included Components Bottle Age Range Description Adult Item Dimensions W x H 2.79 W x 10.43 H Manufacturer Part Number NEWBOGRDAI01 Product Care Instructions Hand Wash Only Recommended Uses For Product Water