These bailer spring plates are manufactured using the highest quality spring stainless steel, designed to both retract using spring tension, and at the same time providing a surface for the activator to push against to close the chute.
"I was getting fed up of replacing the rubber bands on my self bailer every 4 months as they would perish."
Recent changes to the Laser® rules allowed the replacement of the bands by springs. Traditional coiled springs have been known to get tired of closing the bailer after being left open for long periods which then need to be replaced for best effect. This design does not suffer from this problem.
This is a once only solution and works like a dream.