Boulder Rock Closed System
Simplicity and satisfaction perfectly shaped to fit in your hand or pocket.
The Rock is a refillable open system that works with all types of fluid, for example, Max VG, 80/20, 70/30, and 50/50 fluids. Also, it works great with Nic Salts.
Features:
-1 x rechargeable Rock device.
-8 hours of heavy vaping per charge
-Charges in 45 minutes.
-Easy to refill.
-Long-lasting replaceable vapor modules.
-Light good looking and rugged.
-Incredibly user friendly.