Simply peel off one or two layers at a time to adjust the height precisely to your patient. Set to 3/8", 1/4" or 1/8". Handsome, comfortable leather cover. Three resilient rubber layers of 1/8" each are tapered for wearer comfort. The layers are firmly held together by a peel-apart adhesive. Lift adjustment couldn't be easier. For maximum benefit, place one of these inexpensive lifts in every pair of shoes.