TOP QUALITY BITE VALVE REPLACEMENTS
- Mouthpiece: made of Top Grade Silicone. Specially strengthened for long time use;
- 45 degree Bite Valve: with on-off function, easy sip from the tube
- Mouthpiece: made of Top Grade Silicone. Specially strengthened for long time use;
- 45 degree Bite Valve: with on-off function, easy sip from the tube