2 x 510 Drip Tips Wide Bore Basic Black Drip Tip for SMOK TFV8 Baby Tank Alien AL85 Vaperesso NRG Crown 5 Nautilus Vape Tank Mouth Piece- No Nicotine

The ridges that look like o rings are notVery loose fitting and easy to knock out vape have since ordered different ones

Shouldn’t be able to sell these on Amazon. Tried 5 different tanks with 510 ends and too loose for the connector. Will keep falling out.Either it’s to small diameter or the o rings are to small.