One Tiny Might stem measuring approximately – 116mm Stem Wall Thickness - 1.2mm Internal Glass – 1 large glass twist and 1 ball with swirly stuff Bowl Capacity – Medium 7mm deep approximately Will come with a preformed screen. A lighter glass for the stem allows for a wider bowl, the glass has a wall thickness of 1.2mm. It’s not your out hiking stem due to the thinner glass I recommend more controlled environment. Heavier walled stems will be listed elsewhere in the shop (probably). Tiny Might unit for illustrative purposes only All Stems have tested to fit on my personal devices Grasp stem in the centre on an undimpled section and insert straight into the opening, if you find there is more resistance from your devices o-ring than you expected apply a small amount of water for example to the end of the stem and retry. Don’t not waggle from side to side or twist while inserting stems.