The Senco HC0506 Stain Pad is a replacement pad for the Senco FinishPro FP15 and FP18 finishing nailers. It is made of a durable material that will not harm your surfaces from damage. The pad is also easy to install and remove, making it a quick and easy way to keep your finish nailer in good working condition. If you are looking for a replacement pad for your Senco FinishPro FP15 or FP18 finishing nailer, the Senco HC0506 No Mar pad is a great option. It is made of a durable material that will not damage your surfaces and is easy to install and remove.