This is for one pair of new silicone inserts. So two (2) inserts, one for your right foot and one for your left foot just to be absolutely clear. This men's (L) large pair has varying thickness. More in the arch and heel where needed for comfort and support. They have guides to follow in case you need to cut them down to your size. They measure 12" long and can be trimmed over an inch more. They are 3 3/4" at the widest point and 2 3/4" wide at the most narrow point. Unlike others, do not raise you up so far as to make your shoe uncomfortable or risk turning your ankle. So you can use these shock-absorbing inserts when walking, running and playing sports. Order more than one pair because you will want to have these in every pair of shoes you own! They actually enhance blood circulation and reduce muscular aches and pains. Great for plantars faciatis sufferers and associated bone spurs in the heel. These can be used in sneakers, shoes, high heels, boots... Also, there is no adhesive, the blue silicone is tacky enough to keep them in place. So they can easily be moved from shoe to shoe but it is much easier just to have a pair in every shoe. And they are washable, just use warm water and soap. Simply place the silicone insert with the very soft and comfortable suede cloth side up. You may replace the original shoe insert or you can place it under the insert or you can put it on top of the insert. What ever is best for the pair of shoes you are using that day. This pair has more arch to it than the honeycomb pair on my other listing.