I am not happy with this waterer. When I try to open it or close it, it is extremely hard. I can't seem to get a good grip on the plastic. It does not leak which is a good thing. However it needs to be off the ground I have 3month old chickens and they are always getting dirt and poo in it from scratching. I am in the market for another one and this one will be on ebay shortly. If you have hands larger than 6 1/2inches from the bottom of the palm to the tip of the middle finger it might work for you.