Tree Seat, Strap on tree attachment

Tree Seat - an Add on to any tree you like for a little relaxation. Simply strap to tree and sit.

Hardware:
(1) Bolt 3/8 x 4-1/2", (2) 3/8' x 3/4" washers, (1) Nylon Lock Nut 3/8"
1 webbing strap 1" wide (rated for double your weight)
https://www.amazon.com/CARTMAN-Lashing-Straps-600lbs-Orange/dp/B01M6D6KKZ/ref=sr_1_16?ie=UTF8&qid=1528907892&sr=8-16&keywords=ratchet+strap+1%22
1 Kneeling pad (see gardening knee pad) Cut to fit something like this.
https://www.amazon.com/Juvale-Heavy-Dut