Hair Materialï100% human hair Hair OriginïBrazilian hair Hair TextureïStraight wave OEM AcceptedïYes Can last for more than 24 months Unprocessed straight wave bulk, have full cuticle, soft touch and no tangle, the cuticles are on the same direction, so it is more tangle-free and silky touch. They can be well processed by yourself, can be dyed, ironed