Holding practice locks in your hand isn't a very practical way to learn, this little stand will hold your lock on a desk using small clamps so you can practice the proper way, there's also a little tray below to hold your picks. The clamps use M4 bolts and nuts, just insert the nut into the space in the clamp and you're good to go. The pads are optional to protect your desk from scratches. Also included a tool to remove the core and repin the lock, be careful of those little springs!