Calluses are a thickening of the skin due to increased pressure or friction. A callus usually occurs over a bony prominence such as the ball-of-the-foot, contracted toe, hammer toe or bunion. Some other factors that may cause a corn or callus to develop are poor fitting shoes or socks and activities that increase stress/pressure on the foot. Felt callus pads absorb pressure and friction to ease pain and help prevent callus build-up. Self-Adhesive backing. Can be trimmed to fit. 1/4" thickness. The center hole is precut and can be reveal by a slight push./br/br1/4" thickness. 10 Pads. Treat painful callus or use as a bunion pad. Self-adhesive. Prevents callus build-up. Callus Remover Cushions./br/brGTIN: 755332166466 000088050263. Best Sellers Rank: See Top 100 in Health & Household. Arch Type: Low Arch. Size: 20 Count. Number of Items: 1. Unit Count: 20 Count. Brand: Dr. Jill's. : B01ACWMN8M. Manufacturer: Dr. Jill's. UPC: 755332166466 000088050263. Item model number: J-2T. Package Dimensions: 5.7 x 4 x 1.6 inches 0.8 Ounces. Is Discontinued By Manufacturer: No.