Dụng cụ vặn nắp bình giữ nhiệt Contigo

Contigo Coffee Mug Wrench

This is an aid for opening that Contigo thermal mug in the morning for those with poor grip strength or just low caffeine levels. The situation is a bit Catch 22ish - you can't open the mug without some coffee but you can't fill it without opening it.

It's probably overkill; certainly not an elegant solution but it works. It fits two styles of Contigo mugs, shown in the image. The inside diameter is 78 mm. I don't recommend using it for closing lids, only for opening them.

I printed this from PLA with three shells, 0.2 mm layers, 0.5 mm walls and 25% infill. Supports are needed for the handles.