Tantalus 3 Pk. of Liquid Bottle Locks Keeps Hooch out of the Wrong Hands

A strong friend was able to pull the lock off. Have they fixed that?

what are the dimensions of the lock? Some bottles have necks that taper faster than in the picture. What's the smallest size bottle that would work?

Will this fit a bottle of Crown Royal?

Will this fit over a 1.75 liter bottle of Crown Royal? Outside edge to outside edge of opening is 1.25".