OFFICIAL CADENCE DESIGN - Meet the Cadence Extender, which includes three (3) capsule extensions that adds an extra 1.43 fl oz. and seamslessly attaches to any of our magnetic capsules. FLEXIBLE & CONVENIENT - This add-on to your travel size containers gives you flexibility and convenience, especially for extended journeys or when you need more volume. Enjoy the freedom to double up on essentials for long trips and remove them for shorter trips. TSA-APPROVED & 100% LEAK-PROOF - Say goodbye to spills! These travel bottles for toiletries are 100% leakproof, ensuring your liquids stay contained no matter where you go. TSA-compliant and built for durability, they’re the perfect companions for stress-free packing. EASY TO FILL & USE - Featuring wide openings, these eco-friendly carry-on travel containers for toiletries ensure the hassle-free transfer of any liquids while also making sure you can reach every last drop, reducing waste and maximizing convenience. DESIGNED FOR PERFECTION - After 207 prototypes, 4 patents, and years of dedication to perfection, these thoughtfully crafted containers with lids offer the perfect balance of form and function. Every detail, from the choice of materials to the magnet strength, has been meticulously considered to ensure a hassle-free travel experience.