This is a Vintage Fleet Socket Set. These are Tools By Proto. This is a 3/8″ SAE Socket Set a total of 22 Pieces. You get the Shallow sockets & a bonus Deep Well (Penncraft) set…plus a Spark Plug Socket, an extender and the swivel socket. The 7/16 in the shallow set is a Challenger brand. This is a classic socket set in a Rhino tough, strong plastic case. This works great. This comes from a smoke free home.