The Davies Molding LLC part 1550AG is a durable and versatile black thermoset knob. Measuring 1.19 inches in diameter and 0.625 inches high, it is designed with a plain molded hole for easy installation. Additionally, it features a 0.25 inch diameter mounting hole, providing a secure and snug fit. This knob's plain molded hole allows for customization options, making it suitable for a wide range of applications. Its high-quality construction ensures durability and longevity.