This pneumatic spring is designed to meet the needs of professionals and hobbyists Its sturdy construction and reliable performance make it an indispensable tool for a variety of applications. With its easy installation and universal fit, this spring retainer is a must-have for any pneumatic tool user. Features -Color:Black -Material:Steel -Size:4.00X4.00X3.50cm/1.57X1.57X1.38in -Note:Suitable for 150/190/220/250mm diameter air hammers and . -Universal compatibility: designed to work with pneumatic and air hammer, offering extensive versatility -Lightweight and portable: the compact and lightweight design allows for easy transportation and storage, making it ideal for easy use -Innovative designed: the unique design adds a stylish and distinctive look to your tools, enhancing their overall appeal -Simple operation: easy to use without the need for advanced skills, making it suitable for a wide range of users - : built with attention to detail and stable materials, ensuring durability and reliable performance Package list: 6 x Springs