The Small 10mm female titanium nail is the most standardized design of a domeless nail. It unscrews in the middle for versatile use and easy cleaning. It's also small, portable and easy to carry around. If you have a 10mm male rig, this is the Ti Nail to get.
This universal titanium carb cap is great to use with your domeless nail because not only does it fits most titanium nails, but using a carb cap will save you from losing excess dab after a hit. Many people just use dab tools for dabbing. After taking a dab hit with a dab tool, if you're not careful, you'll run the risk of burning something or yourself. Because of the way the carb cap is designed, it's able to stand upright after using it to dab. You can place it on the table or right on top of your domeless nail.