Micro Braids are DG Nylon Doll Hair that has gone through a special machine process, creating high quality braids that don't unravel, unless they are "Twist Braids". Available in a variety of thicknesses 1mm, 1.5mm, 2mm and Jumbo 3mm braids. Each hair pack is 1oz/28g in weight and 36 inch/92cm length. Needle Size needed: 1mm Size 5, 1.5mm - 2mm Size 3 and, Jumbo 3mm Size 1 needles. It is recommended to prep head with Liquid Fusion to prevent head splits.