Soft Silicone Straws (Set of Three) have been designed especially for your bkr water bottle and fit into the bkr Straw Cap. To use, just screw the Straw Cap onto the bottle, then insert the straw through the clear silicone valve. The straws come in a package of three and are available in two different sizes to fit the 500ml, and 1L, bkr water bottles. They aren’t too narrow or too wide, they’re angled for easy sipping, and they’re super cute and dishwasher safe on the top rack.