EASY TO USE - This coffee bean storage has 6/12 glass tubes, each tube can to 18/22 grams of coffee beans. Lead-free glass tube - The coffee tube is transparent and beautiful, healthy and environmentally friendly. Wooden base - High-quality natural walnut base, embedded design, protects the glass tube from falling easily. There are four anti-slip pads on the bottom for stable placement. One-way exhaust valve: Keep coffee beans fresh for a long time. During the extraction process, carbon dioxide hinders the coffee grounds from absorbing water efficiently. This one-way exhaust valve can automatically discharge CO2 through the pressure difference between the inside and outside, and isolate the outside air from entering, thereby achieving the effect of raising beans and maintaining flavor. Colour:As Shown Material:wood + glass Test Tubes Size:big Package Contents: 6 x test tubes 1 x 6 hole base 1 x funnel 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.