Feature: 1. High Toughness Nylon: Mounts track ball features a high toughness nylon body, providing durability and tear resistance, ensuring long lasting use without easily getting damaged. 2. Rubber Ball Head: The ball head is made of industrial rubber, offering high flexibility, with a matte finish for increased friction to prevent slipping and ensure secure mounting in place. 3. Enhanced Friction: Equipped with rubber pads to increase friction and prevent slipping, and also to prevent the ball head from direct friction with the track to avoid damages during use. 4. Wide Compatibility: T bolt mount track ball compatible with B and C size balls, arms, rails, and flex arms, allowing versatility in mounting options for various devices and equipment. 5. Excellent Construction: Constructed with rubber and nylon materials, the track ball with T bolt attachment offers a reliable solution for mounting needs, ensuring long term use and performance. Specification: Item Type: Mounts Track Ball Material: Rubber, Nylon Size: Approx. 3.81cm / 1.5in. Package List: 1 x Mounts Track Ball