"One of the most popular flip socket in a thin wall design for ultimate access and high strength","6 point socket openings on both ends","Includes: 19mm x 21mm thin wall flip socket, 3/4\" x 13/16\" flip socket and 3\" long impact extension","Set comes in a pouch 3 PIECE 1/2" DRIVE 6 POINT FLIP IMPACT SOCKET SET SCP36PTB | Matco Tools