EASY TO USE - This coffee bean storage has 6/12 glass tubes, each tube can hold up to 18/22 grams of coffee beans. Lead-free glass tube - The coffee tube is transparent and attractive, healthy and environmentally friendly. Wooden base - High-quality natural walnut base with an embedded design to help protect the glass tubes from falling. Includes four anti-slip pads on the bottom for stable placement. One-way exhaust valve: Helps keep coffee beans fresh. During storage, carbon dioxide can affect coffee quality. This one-way valve releases CO2 using internal pressure differences while preventing outside air from entering, helping preserve flavor. Color: As shown Material: Wood + glass Test tube size: Large Package Contents: 6 x test tubes 1 x 6-hole base 1 x funnel Only the above package content is included; other items are not. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.