The Bass Brush patented new BIO-FLEX is an incredible break-through with a handle made with cornstarch! With a unique fluid design and flexible pins, the BIO-FLEX is perfect for wet or dry detangling, to prepare the hair for styling, or just a quick tune-up. It pairs beautifully with other Bass Brushes. Handle made from corn, cassava, and potato starch therefore certified 95% Biodegradable. When discarded, under organic conditions such as a landfill, the handle will break down into a perfect natural fertilizer. It's durable and will function optimally for years, but when it's finally discarded, the handle organically breaks down to create a natural fertilizer. Flexible nylon pins effectively detangle while minimizing pull. Used and recommended by professional hairstylists all over the world.