Click or scroll to zoom Tap or pinch to zoom GRAV® 14mm Female Domeless Nail by GRAV $15.00 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart The 14mm GRAV® Female Domeless Nail made of heat-tolerant quartz is compatible with any 14mm male joint. Its dish is designed for vaporizing plant extract.