This is a set of genuine, unused replacement brush heads and a used genuine charging base for a Philips Sonicare toothbrush. I am not very familiar with the product, so please refer to the images to determine the compatible models. I was using the HX6730. The charger was used occasionally for business trips, so it is in good condition with little use. If you would like, I can also include the broken main unit and the instruction manual. Please let me know when you purchase. Please note that the item will be shipped via Yu-Packet Post in very simple packaging using recycled envelopes, etc. If you are concerned about this, please refrain from purchasing. PHILIPS sonicare HX6100