A Bahco 34 piece 1/4in and 3/8in square drive socket set with dynamic drive profile.

Contents:

1 each 3/8 in 6-point dynamic drive sockets 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20 and 22 mm.
1 each 3/8 in extension bars 3 in and 6 in. 
1 x 3/8 in universal joint. 
1x 3/8 in x 1/4 in bit holder.
1 each 3/8 in spark plug sockets 6-point 16mm (5/8 in), 21mm (13/16 in). 
1x 1/4 in spinner handle.
1x 1/4 in x 1/4 in bit holder.
1 each 1/4 in bits flat 4, 5.5, 7 mm.
1 each 1/4 in bits phillips # 1, 2, 3 and 4.
1 each 1/4 in bits hex 3, 4, 5, 6, 7, 8 mm. 
1x 3/8 in ratchet handle 54 teeth.