Specification1. Product: Toupee for men2. Material: 100%natural human hair3. Base design: Thin skin, mono base, lace base, etc4. Knots type: V loop in front, double knots in the rest5. Size: 6"X7", 7"X9", 8"X10"6. Density: 80%-130%7. Color: Natural black8. Texure: Natural weave8. Style: Free styleType of Knots:Single knot, double knots, revert knots, new revert knots, RSK, DRSK, V-looped, injected ...