ZIPLINEGEAR Tree Saver Block Kit (for 2 Trees), Comes with Adjustable Straps for Trees up to 3FT in Diameter, 16 Heavy Duty Nylon Tree Saver Blocks Protect Tree Bark from Zip Line Cable

Molds to tree circumference very well. All Zipliner products are professionally made.

Easy to use good instructions, happy with product. Fit our rather large doug fir trees and made installing the zip line much better.

It does what it says.. provides protection to the fragile bark on trees, and allows us to enjoy our spline, guilt-free. Rugged enough for at least a few year’s service.

Easy to use and protects your trees from your zipline! A must! (Easier than nailing wood to your trees!)

Bought these to protect the trees for my granddaughter’s strap swingset, and they have been great.

Great product and company to work with, very accessible. While protecting the trees, also allows for easier height adjustment of the cable, sliding up/down tree smoothly.

Is working as promised, a bit difficult to adjust or place on trees and line at the same time. best if product comes attached to a string and adjusted according to tree dimension. A 2 person job some times. 4 months on tree so far.

After learning that it is just a cammed strap and injection-molded plastic blocks.  I could have sourced it myself for a fraction of the price