"Features the innovative pinless preform socket end that enables true 360 degree rotation for maximum accessibility","Includes sizes: 3/8\", 7/16\", 1/2\", 9/16\", 5/8\"","Packaged on a nylon rail 3/8" DRIVE 5 PIECE SAE 6 POINT DEEP UNIVERSAL IMPACT SOCKET SET SBDUP56TB | Matco Tools