The Civilized Stacking Container - Perfect for snacks on the go – With a simple 180-degree twist, containers click together for easy transport Clip It Anywhere - Removable ClipHandle easily attaches to packs, totes and straps Leak-Free - Silicone gaskets ensure leak-tight seals, plus the lid snaps onto container base so you never lose track of one Responsibly Made - Eat to your health! We use FDA food-safe material that is BPA-free, PC-free, and Phthalate-free Design Made to Last - Since 2007, humangear believes design comes from empathizing with those who seek what's reliable, multi-functional, and sustainable. We're passionate about creating evolved products to help humans and the planet, too