These Shoe Stretcher enables you to stretch any pair of shoes to accommodate the exact size of your feet, banishing the misery of rubbing shoes. Suitable for both left and right shoes, this beautifully grained hardwood shoe stretcher expands to lengthen or widen shoes and also features special pressure relief plugs that position to custom stretch specific pressure points for relief from bunions, hammer toes, calluses or corns. Left to work overnight, leather is stretched safely and permanently. Shoe Stretcher are suitable to use for the following reasons. Shrunken Shoes - Swollen feets. - Feets between two sizes. - Bunions. - Corns. - Other foot imperfections.