Patent 6,352,224;Forms tight radius 90 Degree bends in flexible CTS tube without kinking;Nail plate models have unique open corner which allows tube to be inserted after the bracket is installed and after tubing end has been plugged;Pre-drilled hole for 3/8" (3) rebar allows installer to use as a ground stake for flexible CTS tube;Mount several SideWinders to PowerBar to organize pipes underground before the pour