Ball-of-Foot Relief is Here Just place these durable, foam cushions in your shoes to instantly absorb shock and reduce pressure on the balls of your feet. These self-adhesive pads will help prevent calluses and stop your feet from sliding forward in your shoes. Great for thin-soled footwear. 1 pair per package. One Size Fits Most. Insert cushions into forefoot sections of shoes. Test for comfort. For permanent placement: Remove the protective backing from the self-adhesive area, properly position each insole in footwear and press firmly to secure bonding. Product may be wiped with a clean, slightly-damp cloth. Allow the product and footwear to air dry completely before reuse.