No more using cups, bags, etc. , now there is a safe and secure way to properly handle tip money. This Tip Box can be locked, secured to a table or counter surface. They are NOT built for attaching to walls. Black. 7-3/4W x 6H x 4-1/4D. Built in mounting bracket includes a second set of keys to secure the box to the surface for maximum security. Box comes with two keys per lock with each lock different.