The Britool BRIE031805B 22 piece 3/8 inch 12-point socket set includes the following sockets:

3/8 inch standard 12-point sockets:6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22 and 24mm.
1 x 3/8 inch ratchet.
1 x 75mm extension.
1 x 125mm extension.
1 x 3/8 inch socket with 1/4 inch bit holder.
1 x 3/8 inch universal joint.

The Britool BRIE031805B 22 piece set is supplied in a socket set case with metal clasps which also converts into a modular storage system for use in roller cabinets.