This is easy to use. It opens from the top and the bottom. Make sure that the bottom is on tight if not the water will come out of there and all over you. My daughter thought it would be funny to un tighten it a little bit and I went to take a drink and water went all over me. You put your fruit in the chamber that opens from the bottom. This is a shatterproof bottle which it a plus for me I am always somewhere dropping something. You can also put ice in the chamber instead of fruit i have done this because we ran out of fruit.
You can get yours here