Hydrojug Lid Opening Tool

My wife has many Hydrojug tumblers, and the lid seems to get stuck on all of them. This tool gives somewhere to put pressure and help open the lid, stuck or not. This has been tested with both the 40oz, 32 oz and 20 oz cups. I have added a keychain hole at the base for easy storage. There are many great uses including the off brand spill proof lid for Stanley cups.