Designed for all BaBylissPRO Skeleton Outliner Lithium Hair Trimmers. Coating prevents blade from getting too hot during multiple haircuts. The BaByliss PRO Replacement Outliner Hair Trimmer Blade Gold FX707G2 is designed to be used on all BaByliss PRO Skeleton Outliner Lithium Hair Trimmers. This deep tooth T-blade is perfectly honed for precision and detailed work whilst the deep tooth design makes this the perfect in-between blade for edge-ups and removing bulk.