Made of DuPont Delrin nylon Black Diamond combs offer an alternative to hard rubber combs which can become brittle with age Not Black Diamond These durable heat and chemicalresistant combs retain their superior flexibility throughout their lifespan offering top quality styling service to busy salon professionals Theyre staticfree which brings peace of mind when working with professional hair dryers and other potentially drying salon equipment . One of the largest wholesale salon and beauty supply distributors of professional and retail beauty products in the United States. The world's largest retailer of salon-quality hair color, hair care, nails, salon, and beauty supplies