my son william literally punched a dime sized hole in his shin in a motorcycle spill. when i saw it a filled it with magnascent as he held it level. that stuff bubbled and bubbled. a couple of treatments like that and it actually filled up. we were both amazed and he was pleased with the result.
this would is big around as a silver dollar, or at least it was. it has already shrunk some in diameter and a lot in depth.