PREMIUM MATERIALS: Made from premium materials, it is functional, efficient, and easy to use. WIDE COMPATIBILITY: Compatible with 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, AT890, AT891, AT893, AT910, AT911, AT750, AT751, AT752, AT753, AT754, AT757, AT758, AT798, AT891, AT926, and other compatible models. INSTRUCTIONS FOR USE: Shaving heads should be replaced every eighteen months. Easy to install. Clean the shaver before installation. PERFECT PERFORMANCE: Replacing the shaving heads provides a 25% more efficient shave. Clean the product regularly for optimal performance. REPLACEMENT SHAVING HEADS: Replacement shaving heads restore your shaver to 100% performance and deliver a closer shave. DURABLE AND EASY TO CLEAN: The shaving head is made of high-quality ABS and stainless steel, includes a practical cleaning brush. RAZOR HEAD SIZE: Length, width, and height are approximately 60 x 50 x 30 mm (2.36 x 1.97 x 1.18 inches). PACKAGE INCLUDES: 1 x Shaving Head