The Vandy Vape Refill Bottles offers a variety of option such as the Pro Edition and 30mL capacity, allowing for convenient access with any 510 compatible squonk box mod. Plastic and Silicone Construction 30mL Juice Capacity Magnetic Top Cap - Can Attach at Bottom Two Filling Tips - Dripping and Squonking Compatible with 510 squonk box mod Brand: Vandy Vape Model Refill Bottle Pro Bottle Capacity 30ml Color Matte Black