Calla Hair Collective About Our Hair All our PRO wefts are double drawn, leaving no little hairs to irritate your clients, while maintaining a thin seam thats cuttable. 130 grams per pack. 21.7 grams per weft. 6 wefts per pack. More hair = more possibilities. All hair is grade 12A Remi human hair. Each batch is tested for its high quality. Explore all blends Want educational templates to send to your clients? download now Made with YOU in mind. Our work is only as good as the materials we use.