1. 360 degree grinding, three-dimensional roundness, 4D three-dimensional molding, fine and rounded edges without grinding feet 2. Polyurethane foam, soft and comfortable, fit the foot 3. Adhesive design, firm and does not hurt the shoes 4. Widened design, 180 degrees wraps the heel 5. Material: polyurethane foam 6. Size: about 10.5x4.3x0.2/0.4/0.6cm 7. Weight: about 5.1g/pair for 0.2cm, about 7.4g/pair for 0.4cm, about 10g/pair for 0.6cm
