The stainless-steel interior of this 8 oz. Stanley Easy Fill Wide Mouth Flask will not retain flavors or smells and the wide-mouth opening is easy to sip and pour from. The rustproof exterior withstands weather and wear. The leak proof design is made from 18/8 stainless steel for strength and durability. The slim profile slides into a pocket for easy access and convenience and it includes an integrated lanyard. BPA free. Classic hammertone green finish the Ruger eagle logo. This flask carries a lifetime warranty from Stanley. Weight: 0.35 lbs. Dimensions: 1.50" L x 3.00" W x 7.50" H. Made by Stanley.