Block Penetration (FT)

blkpenetrationA cylinder with a closed end and a block with holes through them are locked with a steel rod passing through the holes. The block instantly penetrates the rod.
Plastic cylinder, (1″ dia. and 2″ long), block (7/8″ dia. and 1″ long) and a 3 1/2″ long steel rod with instructions supplied.

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