- 19mm Female.
- Compatible With 20mm Coils.
- Diamond Knot Domeless Nail - Helps With Even Heating And Low Temp Dabs.
Diamond Knot Domeless Nails help with even heating and low temp dabs, giving your dab more surface area to vaporize, maximizing your dab. This Nail Mafia 19mm female nail is built to fit with 20mm electronic nail coils, giving you a cleaner and more satisfying hit!