Mr. Gasket magnetic fasteners are designed to secure routing of electrical wires, cables, tubing, hose, or ignition wires used in street and racing applications. These fasteners offer a wide range of flexibility for custom installations in automotive, truck, trailer, commercial, agriculture industrial, electrical, and home shop use. Attaches to most metal surfaces , can be repositioned easily, and provides excellent retention. Economical alternative to adhesive mounts. Fast and easy installation.