B.Box set with 2 replacement straws and a brush for the new water bottle. Our newly designed straw features a unique valve in the mouthpiece for easy drinking and a leak-proof design. To replace the straw, gently grip the silicone collar on the straw and pull it down so that the silicone collar passes through the hole in the cap. Then carefully remove the weight, attach it to the replacement straw, and place the straw into the water bottle.

How to clean the straws: The cleaning brush is designed to clean the inside of the straw. Insert the cleaning brush from the base side and gently push it in. Carefully pull the brush down to move it along the length of the straw. Repeat the process with additional warm water and some detergent. The straws are made of silicone and are dishwasher safe. The straws are BPA and PVC free. Straws only fit on new b.box water bottles.