The D25 is a round tube with a 25mm (1 inch) diameter. It is available in standard capacities of 17ml to 60ml. This IML tube is available with various specifications. 1.5, 3 or 5mm orifice. 1.2 or 2mm lip and 3 different nose options as well as a snap-on 3.2mm orifice. Tamper seals and OTR/WVTR barrier options are available making these tubes ideal for delicate beauty formulations.