This design is simple but works great with Evod batteries.
This steel outer ring has an inner ring of silicone rubber and a clip at the back. Simply fit the ring to a 14mm sized Evod style battery and the clip will force the inner rubber to grip your battery in the position you want.
Comes with the neck lanyard and steel battery holder.
*Purchase is for the lanyard and steel battery attachment only. The battery shown is for demonstration purposes.