Click or scroll to zoom Tap or pinch to zoom GRAV® 14mm 90° Male Banger by GRAV $13.50 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart The 14mm GRAV® Male Banger is compatible with any 14mm female joint and made of heat-tolerant quartz. Its flat dish is designed for vaporizing plant extract, and its 90° angled neck is best paired with straight-based water pipes.