Keep your beans at the best freshness with these airtight single-dose cellars Tubes can be used to store coffee beans, tea, spices, vegetable candies and more.Every sealed tubes available for well organized storage Opening and closing coffee bags or storage containers repeatedly exposes the coffee to the outside air, leading to oxidation and staleness. With our set you can keep your coffee beans fresh. Great for espresso and filter coffee. The weight of the coffee beans used in the tube, whether 17g, or 19g Material: wood + glass Color: as shown Package Contents: 10 x test tubes 1 x base Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.