Designed for insulation board, this foam insulation board washer can provide great efficiency in insulation. Made of sturdy material for long time and durable use. It has a simple design, very practical in use, giving you a . Also can be a great choice for your friends, they will like it. Features -Color:Silver -Material:Zinc alloy -Size:3.50X3.50X0.40cm/1.38X1.38X0.16in -These foam insulation board washers features multiple holes, ensuring maximum efficiency in insulation. -With their easy installation process, these foam board fastener washers are suitable for a wide range of insulation projects, making them a versatile and practical solution. -Making it ideal for larger-scale insulation projects that require a significant number of insulation board washers. -Whether you're working on a small or large insulation project, these foam board washers provide a reliable and practical solution for all your insulation needs. -Small and compact size, light in weight, you can carry and use it wherever you go. Package list: 200 x washers