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, AT890, AT891, AT893, AT910, AT911, AT750, AT751, AT752, AT753, AT754, AT757, AT758, AT798, AT926. Instructions for use: Replace shaving heads every 18 months for optimal performance. Easy to install. Clean the shaver before installation. Perfect performance: Replacing the shaving heads provides a 25% more efficient shave. Clean the product regularly to maintain best results. Replacement shaving heads: Restore your shaver to full performance and deliver a closer shave. Durable and easy to clean: The shaving head is constructed from high-quality ABS and stainless steel, and 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 shaving head