The bottles are made of high borosilicate glass with high transparency and surface; Glass is thick, not fragile; If you use these glass bottles to do some DIY decorations, you 't need to be afraid of breaking unless dropping from high . Can fill some pretty beads or put notes with great wishes, seeds, be a perfume bottle; These mini glass bottles can be applied to decorate homes, hostels, , party, cafes, restaurants etc.; You can show your creativity and about how to use . 50 pieces of mini glass bottles with cork stoppers in 5 shapes, each shape contains 10 pieces, the and shapes can meet your multiple needs. Colour: transparent Material: glass Package Contents: 10 * strips Glass bottles 10 * bulb- glass bottles 10 * drop- glass bottles 10 * flat-bottom spherical glass bottles 10 * heart- glass bottles Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.