<p>Replacement Heads for Philips Norelco Shavers with Dual Blade Precision Cutting System.</p> <p>Dual Blade Precision Cutting System: First Blade Lifts, Second Blade Cuts for a Maximum Comfortable Close Shave.</p> <p>Recommend to Replace HQ9 Heads Every 12 Months.</p> <p>Easy to install</p> <p>Applicable Model:</p> <p>PT series PT870 PT877 PT878 PT920 PT927</p> <p>AT series AT830 AT880 AT920 AT927 4600</p> <p>size:6 x 6 x 2cm</p> <p>Material:ABS+metal</p> <p>colour:Silver</p> <p>Package Contents:</p> <p>1 x Replacement head</p> <p>Only the above package content, other products are not included.</p> <p>This product is not produced by the original manufacturer. It is a replacement that is perfectly compatible with this model and is produced by the accessories manufacturer. It is not an original product produced by the brand factory.</p> <p>Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>