WHAT IT IS Non-Aerosol Hairspray amp FiberHold Spray is a medium hold hairspray for all hair types. WHAT IT DOES Bosley Pro Non-Aerosol Hairspray amp FiberHold Spray provides medium hold and is fast drying. Perfect for those who prefer a non-aerosol hairspray. When used with Hair Thickening Fibers it may increase the bond between natural hair and Hair Thickening Fibers for extra durable longer-lasting style.