THE PROBLEM: People with very restricted mobility cannot hold, aim or throw a bowling ball but are very capable of enjoying the game.
THE SOLUTION: The ramp shown is made of strong light tubular steel. Height is set to just clear the wheelchair armrests and switches. The horizontal portion of the ramp at the top is, in fact, very slightly past the horizontal so the ball stays there until gently pushed forward. To maximize speed, the upper portion of the ramp is straight and the lower half a gentle curve to the horizontal. Small plastic ( for sliding ) feet at the front are such that the ball makes a very smooth transition to the bowling lane.