This set of 10 Tru-fit brand spacers/washers is made of durable black nylon material. Each piece measures 3/4 inches in outer diameter, 5/16 inches in inner diameter, and 1-3/16 inches in length. These spacers/washers are versatile and can be used for a variety of fastening applications in industries such as hardware, construction, and manufacturing. Add them to your inventory for a reliable and cost-effective solution to your fastening needs.