There is a further new version. That is more compact. https://www.thingiverse.com/thing:3871075

Earplug container

• Inner diameter 18 mm inner Length 60 mm
• Screw cap
• No support required If it is a thing of the size which enters inside, the use by your idea.

2019/8/2 Design changes

• Changed the diameter of the lid 30mm to 27mm because the lid has felt big.
• Changed the height of the lid from 15mm to 10mm.
• Reviewed the contact surface of the lid and the case. Tightness is improved slightly.
• Changed the case to fit the lid.
• Added a lid with a strap hole.