10 Pcs 30x50mm Clear Mini Vial Glass Bottles Glass Jar with Environmental Quality Corks/capsule and Eyescrews--vol 20.0ml Size: 30.0x50.0mm (check the pictures), the size of the inner opening is 17.0mm Color: Clear Weight: Approx 16.5g Pack includes 10pcs of glass bottles, 10 environmental quality corks/capsule and 10 eyescrews Vol:20.0ml