humangear Stax is the first modular storage system designed for humans and makes organization a snap. Food, pills, gear, or anything else you need to carry with you – there’s a humangear Stax container for it! The containers click together with a simple 180-degree twist, so you can customize your storage for any situation. No more loose containers that you have to juggle in your hands. With a simple twist, the containers are connected. humangear Stax containers are leak-proof, and each set includes the handy ClipHandle so you can easily clip it to a backpack or belt-loop. All containers are FDA food-safe, dishwasher-safe and microwave-safe.