These highly compressible, sponge rocks  are funny, oversized props that look like they're really heavy, substantive creations of mother nature. They are hand crafted from foam rubber. Great for clowns and Magicians , or anyone looking to add comedy to the act or just want to play a joke. 

Rocks are hand-made, sizes are approximates:Large 7" x 7'' x 5'',

Foam Boulder - 7"x7"x5"