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, AT891, AT926, and other compatible models. INSTRUCTIONS FOR USE: Replace shaving heads every 18 months for optimal performance. Easy to install. Clean the shaver before installing new heads. PERFECT PERFORMANCE: Replacing your shaving heads can provide up to 25% more efficient shaving. Clean the product regularly to maintain peak performance. REPLACEMENT SHAVING HEADS: These replacement heads restore your shaver’s performance and deliver a closer, smoother shave. DURABLE AND EASY TO CLEAN: The shaving head is constructed with high-quality ABS plastic and stainless steel. Includes a practical cleaning brush. RAZOR HEAD DIMENSIONS: Approximately 60 x 50 x 30 mm (2.36 x 1.97 x 1.18 inches). PACKAGE INCLUDES: 1 x Replacement Shaving Head