MirorTag Silver by JL Safety- A Novel Way to Protect, Display & Put Away a Handicapped Parking Placard. Slip in your handicap tag into this thick holder that unlike others, this one comes with a detachable strong hook that will never melt or bend or break in the sun. Holder will MAGNETICALLY snap On & Off to a Hook you mount behind your rearview mirror once. Full protection, and ON and OFF in a snap. Tag size accepted is 4.125" max, and any length. Maximum mirror post diameter 1". Made in USA Eliminates the pain & frustration to hang and remove the tag from the rearview mirror every time you park and drive. No need to look for mirror post, snap it on with your eyes closed. Easy to transfer to another vehicle if needed Protects and preserves the condition of your parking placard permit. Tough sturdy hook guaranteed to resist hot and cold conditions. Will NOT bend, melt or break Placard size accepted: 4" W by 10" L. Rearview mirror post: 1 inch maximum. one holder and one hook included.