Our hair extensions are measured in packages of 50 grams. The majority of our hair is super double drawn and therefore will appear thick from root to end but it is important to ensure you purchase enough hair for your hair type. Keep in mind the hair is measured by weight, therefore the longer the hair, the thinner the strands appear. For hair extensions over 28 inches, an extra pack may be sufficient. For blending blunt hair cuts or adding colour accents, an extra pack may also be sufficient. Follow this guide to determine how many packs are right for you. Thin Hair= 2-3 packs (100-150 grams) Medium Hair 3-4 Packs (150-200 grams) Thick Hair 4-5+ packs (200-250+ grams)