1.) Material : Made of 100% good quality human remyhair. 2.) size :size available: 8"-30" 3.) style : silky straight, BW, DW, French Wave, Italian Wave, or as your request. 4.) Weight by one strand : 0.5g, 0.6g, 0.7g, 0.75g, 0.8g or 1g/strand, 25 strands, 50 strands, 100 strands, 150 strands or 200 strands a bundle then in a poly bag. 5.)Keratin shape : Keratin tip with U, V, I, C, flats/quare tip. 6.) Quality : tangle free and fantastic shine.