10-PACK 20.8mm / ships one of each color / w/ mesh

7-PACK 27.6mm / ships one of each color

4-PACK 18mm / ships one of each color

8-PACK 32.5mm / ships one of each color

5-PACK 18mm

21.7mm

7-PACK 17.2mm / ships one of each color

5-PACK 33.2mm / black

random color / w/ a 510 drip tip adapter

20.4mm / black (ss + glass) / silver (ss + glass) / gold (brass + glass) / copper tone (copper + glass) / rainbow (ss + glass)

random colors

18mm

detachable / 31mm

18mm

10-PACK 20.4mm / ships one of each color

13mm

17.7mm / ships one of each type

7-PACK 22.7mm / ships one of each color

22mm