Product Dimensions:2.5 x 9.9 x 14.5 cm; 30 Grams Batteries required:No 90 Pieces Corn Cushions, Soft Latex Foam Self Adhesive Callus Pads Corn Pad Anti Friction Reduce Foot and Heel Pain, 2 Models PACKAGE CONTENT: Comes with 90 pieces soft foam callus cushions in 2 shapes, 45 pieces in oval, 45 pieces in circle. It can protect sensitive areas on your feet from rubbing against socks and shoes, protect your toe and your feet well, suitable for men and women. SOFT MATERIALS: These corn pads are made of waterproof latex foam material, can be placed in multiple positions inside the socks and shoes or sticky directly on your foot. SPECIFICATION: Oval corn cushion is approx. 2.8 cm in length, 1.9 cm in width, interior hole measuring 0.65 cm in diameter; circle corn cushion is approx. 1.7 cm diameter, interior hole measuring 0.7 cm. PAIN RELIEF: Effectively prevent the wound from being squeezed while moving, and relieve pain such as corns and blisters. You can use them at work, running, fitness, and standing for long periods of time. EASY TO USE: Self-adhesive design, easy to remove and fit easily in most socks and shoes, like sneakers, high heels, boots, sandals and so on. Protect you against pain caused by friction, pressure, irritation, knocking and bumping.