1. Internally stable structure ensures the magnet stays securely in place without falling out
2. Larger magnet size delivers stronger magnetic force
3. Premium materials provide a comfortable grip and premium feel
4. Compatible with 17mm ball head bases for excellent versatility
5. Size:
- Outer ring diameter: about 5.9cm
- Inner ring diameter: about 4.3cm
- Height: about 7.1cm
- Magnetic ring thickness: about 0.7cm
- Thickness with nut: about 2cm
6. Note: this product is an accessory and cannot be used independently. It requires pairing with other bases for functionality