BPA FREE FDA COMPLIANT MATERIALS 700ml25oz Tritan Bottle neck drinking tube and check valve all made from FDA compliant BPAfree plastics 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 ATTACHES TO WHEELCHAIR RAILINGS Included bottle holder with adjustable clamp easily attaches to round tubing on wheelchairs power chairs bed railings desks and more The clamp is adjustable between 075 and 125 which fits most wheelchair and bed railings 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