PREMIUM MATERIALS: Made from high-quality materials, this replacement shaving head is functional, efficient, and easy to use. WIDE COMPATIBILITY: Compatible with Philips models PT710, PT715, PT720, PT721, PT722, PT724, PT725, PT726, PT727, PT728, PT730, PT731, PT732, PT734, PT735, PT736, PT737, PT739, PT786, PT810, PT815, PT860, PT866, PT868, PT880, AT810, AT811, AT814, AT891, AT893, AT910, AT911, AT750, AT751, AT752, AT753, AT754, AT757, AT758, AT798, AT926 and other compatible models. INSTRUCTIONS FOR USE: Replace shaving heads every 18 months for optimal performance. Clean the shaver before installation. Easy to install. PERFECT PERFORMANCE: Replacing the shaving heads provides a 25% more efficient shave. Regular cleaning ensures best results. REPLACEMENT SHAVING HEADS: Restore your shaver’s performance and achieve a closer shave. Durable and easy to clean, the shaving head is made of high-quality ABS and stainless steel, including a practical cleaning brush. RAZOR HEAD SIZE: Approximately 60 x 50 x 30 mm (2.36 x 1.97 x 1.18 inches). PACKAGE INCLUDES: 1 x Replacement Shaving Head