The reason I make this oversize key-chain is because I have lost 2 female toilet keys in a week, most of the reason is the customer accidentally take away the small key when they finish their "job" in toilet. By making this size, they can't put the key in their pocket.... You can also wear it on your arm if you are too busy in the toilet :-) Never Lost Your Office Toilet Key again~ Enjoy~Print 2 identical parts and glue it together, My printer setting, 1.2mm wall thickness, 10%infill, no support, 0.1mm layer Thanks for support