Why an iced-coffee cup still tips
A lid does not fix the resting surface.
Clear the straw path
Keep long straws away from sleeves and objects that can catch them.
Check the tabletop
Do not place the holder on a wet stack of napkins or an uneven cup sleeve.
Wash the holder
Remove the cup and hand wash Steadi. Do not transfer the cup’s dishwasher instructions to the holder.