Easy-to-use kit converts our DromedaryA(R) and DromLite(TM) bags into hands-free hydration systems. Includes an MSRA(R) Bite Valve and shutoff valve; a 42-inch (107-cm), taste-free polyethylene-lined drinking tube that resists freezing; and a custom hydration cap with a 360-degree swivel elbow. Product Specs Material(s) PU Color No Weight (Standard) 2oz Weight (Metric) 0.06 kg Length (Standard) 40 in Length (Metric) 101.6 cm Country of Origin Made in Seattle, USA Inner diameter (Standard) .25 in Inner diameter (Metric) .635 cm