Review on Optimized Tuna Can Oil Press & Squeezer: Efficient Drainer, Can Opener, & Oil Remover Strainer by Tutcht Cobb

I rarely write reviews but I'm in dire need of a flip-top can opener - I buy my light tuna from Costco - and I took a chance by buying these as some reviews say they fit and some say they don't. I'd like to confirm - the larger of the two is good for a standard tuna that can flip and the smaller one is small - I'd probably use it to load a small jar of contents. The edge has a hook to get under the folding arm, after which you can easily remove the tuna lid. Excellent purchase!