SAFE AND REUSABLE Our 500ml stainless steel water bottles are made of food grade stainless steel which is strong and rust-resistant for unique durability.BPA free, healthy and environmentally friendly. Our stainless steel water bottles ensure you enjoy sweet drinking water or other beverages with every sip.  Leak-proof, spill-proof, sweat-free and condensation-free.Keep Hot/Cold All Day Long Featuring advanced heat preservation technology, our double wall sports water bottles keep your favorite drinks cold for up to 25 hours and hot for up to 8 hours. You can bring hot water, iced water, coffee and drinks with you.  Nozzle diameter accommodates small ice cubes and chopped fruit. The mineral water bottle has a humanized design that allows you to enjoy coolness in hot summer and warmth in cold winter.Colorful Powder Coating The insulated water bottle is made of fashionable colorful powder coating, it will not splash or discolour and is difficult to scratch. You can touch it when you fill it with hot water and also don't sweat with cold water, always keep your hands comfortable while carrying the water bottle while traveling.Widely Use and Amazing Gift 500ml slim water bottles, fits most car cup holders, motorcycle water bottle holder etc, for walking and other activities.  You can take it with you when you go to work, travel, yoga, class or go for a walk.