Never used. Bought them for $495.

Fits: 2018-2024 Kawasaki Ninja 400 Imapktech Crash Cage

Excellent crash cage, “made of 1.25” X 0.120” wall DOM tubing from high-grade American steel. They are the strongest and lightest rails in the industry, and they come with a Lifetime Warranty. Includes replaceable Delrin slider end caps.”

Link to their store: https://impaktechusa.com/products/crash-cage-kawasaki-ninja-400-2018-2024

Be prepared to possibly have to cut holes in the fairings. You will have to if you own a 2023 ninja 400.