STAINLESS STEEL BOTTLE The 700ml24oz stainless steel bottle is made from industrystandard 188 304 stainless steel It is durable will not rust and does not retain flavor after being properly washed It is DOUBLE WALL VACUUM INSULATED standard for highend steel bottles and thermoses This resists condensation and keeps hot drinks hot for up to 10 hours and cold drinks cold for 18 hours FLEXIBLE AND ADJUSTABLE Features a 25 inch 63 cm flexible modular plastic hose and drinking tube The neck is fully and repeatedly adjustable and will stay in place without springing back INTERCHANGEABLE AND REPLACEABLE PARTS Each component is easily replaceable for hygiene and interchangeable for customization REMOVABLE CHECK VALVE The check valve prevents liquid from flowing back into the bottle For those with limited lung function keeping liquid primed and attheready makes staying hydrated a breeze BOTTLE HOLDER SOLD SEPARATELY Does not include a bottle holder the Giraffe Bottle Aluminum Bottle Holder which attaches to wheelchairs desks and more is available separately or as part of a different kit More details are below in the product description