Shawshank's Redemption Du Fulun why stone carvings
One of his hobbies
2 and also for his later escaped Shawshank prison hanged with hammer
3 carved stone can also relax Shawshank on his wary
Otherwise the hammer looks like it can not be used to dig a jailbreak, but if you just buy it, you will still be suspicious.
Is to hide the real purpose of hammers - digging holes
