After you have added your bundles and/or closing piece to your shopping cart add this feature to make a unit. ALL UNITS ARE CUSTOM SEWN WITH A SEWING MACHINE. The construction process takes 5 business days to complete. Each unit will have an elastic band and 1 comb placed at the back for security and the hairline will be pre-plucked. DURING CHECKOUT PLEASE SPECIFY IF YOU WANT BLEACHED KNOTS & WHAT WIG CAP SIZE YOU PREFER. If NO notes are given we create a standard Medium Cap Size. PLEASE NOTE the hair is not included in this price. This is the service of making a unit!