You hand out two brass rings and a brass block for inspection and borrow four quarters from the audience. The three pieces of brass are assembled to form a cylinder with a solid brass in between. The audience can check that nothing can penetrate from the top part of the cylinder to the bottom part of the cylinder due to the solid brass block. Yet four quarters placed in the top part of the cylinder penetrate the solid piece of brass. Every thing is examinable at all times.
This quarter squeeze is made in heavy brass and polished to a high glossy finish and glitters like gold. Comes with complete instructions and routines and comes in a velvet carry pouch.