All our murrine are made of Murano glass (coefficient 104) and can be used with glass sheet, rods and grits of the same coefficient. Please note: The dimensions are variable. Durante description you will find the minimum and maximum diameter that you will find Per the package. Per mezzo di https://paxtonqpkgy.widblog.com/81455567/un-arma-segreta-per-vetro-colorato