Material: Gel heel cups and gel arch support insoles are made of silicone,soft,comfortable,skin-friendly,self-sticking and reusable,make you comfortable . Size: Gel orthotic insoles length is 10cm/3.94inch,gel arch pads front width is 5.5cm/2.2inch.One size fits all,no restrictive,lightweight,gel cushion pads that are suitable for both women and men (Length*Front Width of Sole) . Feature: The back of the gel heel cups are sticky,which is easy to use and removal,quality silicone that feels good on your feet and prevents growth of odor causing bacteria.Gel arch insoles hight arch design support for flat feet,it relieves stress and pain in arches and helps you buffer while walking without moving . Function: Gel heel pads for plantar fasciitis provide powerful support for your heel and ankle,reducing pain,fatigue and swelling.Orthopedic arch support insoles provide pain relief and support 24 Hours a Day,make the walking more comfortable . Wide use: Silicone heel cups can be worn in most shoe styles,including athletic shoes,dress shoes and boots,can wear all day,perfect for nurses,hospitality workers,runners,dancer,athletes,active people.Gel arch pads are suitable for flats,sandals,high heels,dress shoes and other shoes with the smooth leather insole .