The product is a 1/4" inner diameter x 1 1/4" outer diameter penny washer made of zinc, suitable for various pack sizes. The washer is designed for use in imperial measurements and is suitable for a range of industrial and business applications. With a thickness of 0.05 inches, this zinc washer is durable and reliable for fastening and hardware needs. The variety of sizes and grades available make it a versatile option for a range of projects and requirements.