This ToolPRO Adapter Set allows you to use any 1/4, 3/8 or 1/2" socket and wrench combination that you desire. Manufactured from chrome vanadium steel and sporting an easy to clean high polish chrome finish these socket adaptors will resist corrosion and abrasion damage. They also feature a spring ball detent to retain your sockets during use and stop them from dropping off into the depths of your engine bay. Supplied on a handy plastic rail these adaptors will be kept safe and organised while in store or transport.