Summary

UPDATE:

Also printed these in TPU (Ninjaflex)
Works just as well and the coins now have rubberized armor.

Cointainers,

Friction sealed containers.
Tubes that hold coin capsules, watches, jewelry or other valuables.

M & L containers fit 46 mm capsules

Outside dimensions:

S - 2,9 cm x 1,5 cm, holds four - 50 Euro cent type coins
M - 5,8 cm x 3,0 cm, holds three - 46 mm coin capsules
L - 5,8 cm x 7,75 cm, holds ten - 46 mm coin capsules

Can be scaled up or down to fit other capsule sizes.

For some extra padding to protect valuable coins or watches,
you can add regular cotton cleaning pads.