This unit is a 18 inch 4x4 closure wig. Lace is Transparent. 180% density. No Smell, NO Shedding and Tangle free. Hair is 12A Soft and Silky. Can Be Dyed, Bleached, Straightened and Restyled and Re-used. Very Natural Hairline. Cap Size&Weight: Medium Cap 22-22.5 Inch (Average Cap Size). About 150g-220g Per Piece-the Weight (+/-5g) is Normal Depends on Its Moisture and Humidity. This pre-made unit has 3 Combs to Secure gluelessly And Two Adjustment Straps, Easy to Adjust, Wear Comfortable.