Material: Tom Drum Holder is made of zinc alloy to ensure longevity. Sturdy: Drum Part is finely processed to provide a sturdy and stable structure that can withstand heavy loads. Detailed design: Drum Mount Holder has a total length of 420mm and a ball diameter of 40mm. Package includes: Percussion Stand comes with a bull head stand to facilitate your drum set setup. Wide range of uses: Musical Instrument Accessory is a must have accessory for your drum set that can improve overall performance and sound quality. Size Chart: Total length: 42cm/16.54inch Ball diameter: 4cm/1.57inch Package Includes: 1 Drum Holder Note: Please allow slightly errors due to manual measurement and different monitors.