The product is a 3/8" ID x 3/4" OD x 1/16" All Weather Rubber Flat Washer, available in various pack sizes. Made of rubber, these washers are designed for use with a 3/8" hole size and have a matte finish. The washers are suitable for various industrial and hardware applications, providing a durable and weather-resistant sealing solution. Perfect for fastening and sealing in various industrial settings, these rubber washers are a reliable choice for ensuring a secure and waterproof connection.