These downstems feature an open end to help bubble the smoke through your bong, cooling and filtering it. It features a female 18mm round glass attachment to hold your cone piece.
- Colour: Clear
- Joint Size: mm - where stem fits into bong
- Cone Piece Size: 18mm - where Cone Piece fits into stem
- Available Lengths: 8cm, 11cm, 14cm, 17cm
- Joint Style: Female
- Thickness: 5mm