So this is an 11 piece set of 1/2" dr sockets of mixed makes. There is 2 7/8" sockets included as you can see one has been ground on to fit into tight spots. There is also 2 3/4" sockets. The range is from 1/2" to . They are as follows:
1/2" : Proto
9/16" : F&O
5/8" : Craftsman
11/16" : Westcraft
3/4" : Thorsen
3/4" : Challenger
13/16" : Wizard
7/8: : Proto
7/8" : SK (ground on)
15/16" : Snap On
1" : Proto