Airtight and smell proof. Small holds about a gram of flower, Medium ~ 2 grams and Large ~ 3 grams. Buy a set and you have lifetime storage for a about 6 grams. Stashlogix
I love this! My only complaint is that I can’t fit two jays in it.
they are great will be ordering more for a friend.
Lifetime guarantee shellproof waterproof
Machined anodized aluminum w/ silicone seals — sleek and durable, color coded Waterproof Smellproof Med & large sizes float (I haven’t confirmed this) S/M/L sizes: holds approx 1/2/3 grams