Skin Smoother–Easily Remove Calluses Gently Smooth Rough & Callused Skin Skin Smoother is the fast and effective way to gently smooth rough and callused skin on your feet, hands, elbows, and knees. Your skin will look younger and feel smoother with this simple, pain-free process, all in just seconds! Tough But Gentle On Sensitive Skin! The Smoothing Screen is tough enough to take on dry, cracked calluses on hands & feet, yet gentle enough to smooth sensitive areas like elbows & knees. The flexible, waterproof smoothing screen also allows fine particles of exfoliated skin to easily pass through the mesh without clogging.