Sewn In Support REQUIRES Basic Sewing Skills - 5 Minutes to Install | Similar to a collar stay, but for the placket (Buttons/Holes) of a dress shirt. | Each set permanently upgrades any one (1) dress shirt; Wash/Dry, iron and dry-clean SAFE | Made of high quality, proprietary, flexible material that will last the life of your shirt | 100% Designed, Manufactured and Distributed in the USA