Features:
Three different length locking universal extensions allow access to hard-to-reach areas
Universal locking feature securely holds sockets in place during use
Release button is recessed for low profile design
Chrome vanadium steel for strength and durability
Full polish chrome finish for superior corrosion resistance 
Meets or exceeds ANSI standards
Contents:
PLT-99623 - 3/8" Dr. 4" Locking Universal Extension
PLT-99624 - 3/8" Dr. 7" Locking Universal Extension
PLT-99625 - 3/8" Dr. 11" Locking Universal Extension