This Blue Spot set contains 4 adaptors and 3 universal joints, each made from chrome vanadium for durability. They are supplied in a handy plastic storage case.

The set contains the following:

Adaptors:
1/4in Female > 3/8in Male.
1/2in Female > 3/8in Male.
3/8in Female > 1/4in Male.
1/2in Male > 3/8in Female.

Universal Joints:
1/4in, 3/8in and 1/2in.