Features: Crafted from strong plastic & metal, this 17mm ball head adapters ensures long service performances and universal with devices, dashboards camera , and 17mm mounting systems. Its double ball design and 360 degree rotation enable flexible adjustments, while the not slip rubber coating provides secure grip and defense for stable device positioning during ride or drives. designs for cyclists, motorcyclists, and outdoor enthusiasts, this adapters supports smooth integration with bike phone mounts, motorcycle navigation brackets, & car dashboards setups. optimizes your navigation or recording experience on hard terrains, city commutes, or road by attaching it to handlebars, tripods, or vehicle mounts for clear, adjustable viewing angles. This small yet hard 17mm to 17mm ball head adapters enhances any or mobile device setups , offering reliable adaptability for action cameras, tablet holders, and navigation units in motion. Specifications: Material: Plastic Length: approximately 145mm/6inch Ball head diameter: about 1.7cm/0.7in Package Includes: 1 14.5cmL shaped 17mm ball head adapters note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.