Enhance your electronic assembly projects with our Spacer 4.2X8X20, crafted from durable black polystyrene. Designed for precise positioning and support, this spacer ensures optimal performance and longevity. With an outside diameter of .315 inches and an inside diameter of .185 inches, it offers a perfect fit for various components. The round shape and .787-inch length make it versatile for a wide range of applications. Whether you're a DIY enthusiast or a professional technician, this spacer is a must-have in your toolkit. Upgrade your workspace with this essential electronic fastener today.