Clearly Adjustable Heel Lifts are one of the most innovative and effective heel lifts we at Feet Relief have ever seen! Clearly Adjustable Heel Lifts are made from 14 separate 1 millimeter thick layers of clear Vinyl plastic that can be peeled and adjusted in 1 millimeter increments to achieve any height you need. This is a substantial improvement on the standard foam, adjust a lift adjustable height heel Lifts, which has a maximum height of 3/8 of an inch high and can only be adjusted in 1/8 inch increments. What's more, unlike Adjustable Height Heel Lifts that are held together with an adhesive, the vinyl plastic layers of the Clearly Adjustable Heel Lifts have a natural tendency to adhere to each other with out the need for adhesives so they can be peeled and re-stuck an almost unlimited number of times. Clearly Adjustable Heel Lifts can be adjusted in 1 millimeter. increments giving you the unparalleled ability to fine tune the heel lift to the exact height you need. Most other adjustable heel lifts are only 3/8 of and inch high and can only be adjusted in increments of 1/8 of an inch. Unfortunately many peoples' leg length discrepancies don't fall neatly into those increments so they never get the exact lift that they need. Clearly Adjustable Heel Lifts can accommodate leg length differences down to the millimeter making them more effective then just about any other heel lift on the market. A single lift provides a 1/2 inch rise and can be adjusted in increments of 1 millimeter at a time. If you need a lift that is greater than 1/2 inch you can combine two lifts by interlacing matching layers to create a single lift up to 1 inch high.