This is a certified model hand. I bought it new for practice and used it. It has one broken bone. I was practicing filing gel and acrylic, so there is some powder, roughness around the fingertips, glue residue on the nail beds, and scuff marks and fiber stains from the black sheet. Please be aware of this. I think it's quite clean for practice, but there are individual differences in how things are perceived, so please purchase it only if you are satisfied.