The Puffco Peak travel glass makes traveling with the Puffco Peak even easier. This glass piece features a locking system that keeps water from spilling out during travel. Unlock the mouthpiece to inhale, fill, and empty the glass. Lock it to seal everything up inside. A critical accessory for the frequent traveler. The travel glass is compatible with the Peak and Peak Pro bases. Peak Tavel Glass Features: Use: Concentrates Works with Peak and Peak Pro Patent Pending Double Seal Twist to Lock or Open Fits Inside Puffco Peak Case Do Not Fill When Attached to Base Before Use, Turn Upside Down to Ensure Seal is Tight Water Damage Not Covered Under Peak Warranty What's in the Box: 1x - Peak Travel Glass by Puffco