Test tubes with ledge. Ideal for small cocktails. tea service or soup accompaniment. Made of borosilicate glass. similar to Pyrex. extremely strong with high resistance to sudden temperature changes. Ideal when you need to heat the tubes in direct flame or even when you need to cold them quickly (even submerged in N2) without risk of breakage. Its rounded edge finish gives the tube a high resistance to breakage and add security for the dinner guest. They come WITHOUT cork cap. You can order it apart (ref.100/0054). Don’t forget to buy your brush for cleaning the tubes (100/0017).