Sharp Head
Clean the dirt under nail, or remove false nails around nail edge
Curved Head
Go deep into the nail seam or at the edge of the nail, remove the dead skin on the nail, or remove the false nails ,poly gel,cleaning with no dead ends
Flat Spoon Head
Push up cuticles around nails, or push the polish gel residue after removing, also; it can lean, featuring a rounded edge to ensure not to puncture the delicate skin under your nails