Boat Bench Cushion Block (Stop)

thingiverse

This is a replacement part for the blocks that go under the seats (cushions) in many consumer-level boats, to keep the seats lined up and in-place. The original block measures 100mm x 19mm * 25mm, with screws spaced 53mm. This part duplicates those dimensions. Buying the real part is very cheap, but if it's not available locally, the shipping tends to be very expensive.