These bottles made of plastic which durable and lightweight. This super handy organizer set keeps all your small parts, arts and craft supplies, beads, jewelry, etc. compartmentalized and easy to identify. And Its transparent design which you can see the items obviously in the box. Features - ColorTransparent - Material: PET. - Size: About 4.2 x 3.2 x 3.2cm. - Capacity: 50ml. - Great for keeping small supplies organized, separate, classified. They are small and easy to take to everywhere. - Suitable for storing small parts such as beads, needles, jewelry, pins, coins, small buttons, etc. - These beads Containers are made of plastic. The container is of excellent quality and stands wear and tear. Each of them has a cover to protect beads from scattering. - The Empty Tubes are made of clear plastic, sturdy and durable, you can see the items obviously in the box, lightweight and easy to carry while travelling. - Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you! Package list: 20 x Plastic Bottle