Looking to purchase a complete UHC? click here
Ultimate Hose Clamp (UHC) replacement Bases
The stepper bases come with a metal coupler along with the plastic pieces. The spindle bases come with a band clamp for securing it to your spindle.
Note: these are all printed in black.
If you have the Shapeoko 3 with a Belt-Z... the 90deg base is what you're needing.
If you have a Onefinity and want a 90 degree base with an arm and hose attachment, confirm clearance based on your setup. Bases and arms are ~1" thick
Assembly instructions can be found here