(2.5 inch) Magnetic Collar Stays - Metal (4 Pairs, 8 Magnets) Clmenswear Collar Stiffs 2.2" ,2.5", 3.0" (Set of 8)- 4 pair- (with 2 magnets per pair) Available in 2.2 inch, 2.5 inch, and 3.0 inch These high-tech alloy stays are made with the same material found in aerospace engineering. It's like gaining a whole new closet full of shirts! Mag Stays transform all of your dress and sportswear shirt collars into hidden-button-down collars