Temporarily attach anywhere. Traditional cast iron g-clamp with an added feature a bottle opener. If your latest DIY project is thirsty work, crack open a cold drink after a hard day in the workshop. If you don't have a workshop, or even enjoy DIY, temporarily clamp to a garden table or bench at your next BBQ, or to your kitchen counter, or shelf, or wherever you need to open bottles fast. Useful and utilitarian in the best possible way.