Belly bands are the equivilent of diapers but for boys. You put a pad in it. They go over the boy's little "manhood" so if they try to pee it stays in the belly band.
Heres a pic of my friends dog wearing one. He is 4 years old and was never potty trained because his previous owner negelected him. He stayed ina garage all his life
. So while my firend is workign on training him she has him in a belly band so if her has an accident he doesnt get it inthe house.