Went to help out at Kingsbury church today - they were having a recruitment day. As part of this their training dumb bell was put into action. My two kids had a go it being the smallest first go proper at the grand old age of four. The approx four foot wheel sits in a steel frame with a weight to simulate the bell. The rope is a proper bell rope which comes down the treble rope guide. The comparison to my mini ring was made and considering the size of the simulator I was surprised to find the wheel being that small as it rang like a full sized bell but without the noise!