Patio Heater hooks

We needed a place to hang our towels and robes while we were in the hot tub. We could have bought something expensive but why not make something. We have a patio heater near our hot tub and decided to build a clamp with hooks. The clamp isn't close enough to heater to melt or catch any of the towels or robes on fire. The clamp uses two bolts or something similar to connect.

This is for the 3"diameter pole for the patio heater you would buy from Home Depot, Target, Menards, etc.