Sea-Dog Stainless Hinged Hand Rail TeesFeatures: Hinged feature allows installation without disassembling existing bimini set up; Reduces possibility of scratching tubing during installation; Investment Cast 316 Stainless; For Use on 7/8" O.D. Tube or 1" O.D. Tube; Stainless Tube Wall Thickness .049"; S-D-290603-1 60 Degree Hinged Universal Tee; For Use on 7/8" O.D. Tube; S-D-290604-1 60 Degree Hinged Universal Tee; For Use on 1" O.D. Tube; S-D-290903-1 90 Degree Hinged Tee; For Use on 7/8" O.D. Tube; S-D-290904-1 90 Degree Hinged Tee; For use on 1" O.D. Tube;