1) Material: 100% Chinese Natural Human Hair. 2) Weight: 0. 5g/strand, 0. 7g/strand, 0. 8g/strand 1. 0g/strand and any weight per each strand according to your requirements. 3) Package: 25strands/package, 50strands/package, 100strands/package, 200strands/package according to your requirement 4) Color Categories: Dark color: #1, #1B, #2, #4, #6, #8, #27, #30, #33 Light Color: #10, #12, #14, #16, #18, #22, #24, #34, #44, #51, #280, #99J, #144, #118, #130, #18/22, #350, #530, #750, #850, #613, #Blue, #Pink, #Purple, #Red, #Yellow, #Orange, #Violet, #Green, #Burgundy 5) All of the length are available from 12 "to 30". 6) Fast delivery and Best Service 7) Available style: U-tip, V-tip, I-tip and easy loop style. PVC Bag.