Sturdy, transparent, solid, clean, glass, and safe packaging. Classic shape: a very popular home shape, including a cork cover. Glass diffuser bottle: 2.9 inches (about 7.4 cm) high, 50 ml capacity. When you prepare essential oils and reed diffuser sticks, you can use a DIY replacement rattan diffuser set. If you want to stop spreading sometimes, the cork cap can tightly seal the bottle.