Shoe insoles are one-size-fits-most, lightweight, flexible and made with a vented plastic that supports arches. Also properly aligns feet and ankles. Provides extra body support, balance, stability and shock absorption. Fits in all types of shoes and are washable. Insoles are packaged on a blister card with hanging hole. Each insole measures 6" long with a 2 1/4" width at the heel. The ball of the foot is 2 5/8".