Snap-on 3/8" Drive 6pt SFS series Deep Socket SAE Flank Drive USA 8 pc set.

Sizes included:

13/16 SFS 261

3/4 SFS 241

11/16 SFS 221

5/8 SFS 201

9/16 SFS 181

3/8 SFS 121

5/16 SF 10

1/4 SFS 081

Also included is the socket tray as seen in photos