The Sunpatch (Patent Pending)- 21st Century Sun Visor Made with Revolutionary ClingCro Technology Easy positioning with no tools needed--- Made from ClingCro--very rigid and durable, not flimsy like a film or a mesh Reduces Glare, Harmful UV-Rays, and Heat. Entire surface area of The SunPatch blocks the sun, unlike mesh screens which only do half the job.literally. Clings to all glass surfaces in warmer weather above 45 degrees.