EASY-TO-CARRY - The Portable and miniature size lets you bring supplements with you wherever you go EASY-TO-USE - Simply fill from the bottom and then funnel from the top into any drink bottle. EASY CLIP CARABINER - Use the carabiner to clip the bottle to whatever you like such as keys or gym bags. DESIGN - Original Classic dual cap design. Eco-friendly. TSA-friendly. Food grade BPA-free plastic. MANY USES -Can also great for vitamins, baby formula Milk, Spices, Honey etc.