KINGSTON KITCHEN S0 BATHE: Add-On Shower Holder for Grab Bar Installation TOLL-FREE CUSTOMER SERVICE: 1-877-2-BRASS TECHNICAL SUPPORT E-mail: 12775 Reservoir Street, Chino, CA 91710 Ned Tools: Tun Phillips Screwdriver . To disassemble the Add-On Elder before install to the grab bar. . Gently install the handle and white insert into the bracket with the long Flathead screw. Then Covered the screw hole with a black rubber cap. .