Features： 1、Fitment: Electric trimming head is fit for 7 series, ensuring a fit and optimal cutting performance. You'd better match the appropriate model when you buy it. 2、Restore Performance: Replacement trimming head allows your cutter to regain its original performance and achieve a close and smoothness grooming 3、Easy Installation: Replacing the grooming head is simple and hassle free, requiring only 2 steps to install the new head onto your hair and beard clipper. 4、Enhanced Trimming Experience: Changing the trimming head can improve cutting results by up to 25%. For optimum performance, it is recommended to clean the head regularly. 5、Stainless Steel: Made from ABS and stainless steel materials, replacement grooming head is designed to be durable and provide long lasting performance for your cutter. Specification： Item Type: Hair cutter replacement head Material: ABS, stainless steel Fitment: Fit for 7 series(720, 760, 790, 799 and 797) Package List： 1 x Hair Cutter Replacement Head