Hair Perfecting Duo - BenefitsHelps achieve a soft, natural application of FibersToppik Hairline Optimizer is uniquely designed with irregular teeth to mimic a natural-looking front hairlineCreate the look of fuller-looking, thicker hair by using these two must-have tools together with Toppik Hair Building FibersPatented Toppik Spray Applicator helps to apply Toppik Hair Building Fibers more precisely into specific, targeted areas - Hair Perfecting Duo