Now you see it…Now you don’t • Unique twist lock design allows the socket to be installed or removed from a permanent concrete base foundation in a matter of seconds • No more water or sand filled sockets or sockets that protrude above the sand • These stainless steel sockets will not rust even if left installed year round • The unique concrete foundation with embedded base plate design has a leveling feature to allow precise post leveling and eliminate installation errors • TwistLock SVB27 sockets and VB340 adapters come standard with Centerline Elite single and side-by-side systems but can be ordered separately to use with other manufacturers 4″ systems • Order VB354 to allow installation of 3-½” volleyball posts in SVB27 4″ sockets. Approx. shipping weight: 50#/each; Sm. Pkg.