They are differentiated by the type of active tip, type of fitting and inner and outer diameters:

– Active tip types: MCC – MCCAI – MCCAO – ACC – ACCAI – ACCAO – ACCS – ACCSAI – ACCSAO – MCCS – MCCSAI – MCCSAO – DCM – RB – RBA – DOA – BA – BAA – PA – OB – OBA
– Fitting Types: R – SZ – ST – X
– Inner/Outer Diameters: 1.7 / 2.2 – 2.2 / 2.8 – 2.5 / 3.5 – 3.5 / 4.5
– Available lengths: 80mm -115mm
– Available Angles: 15°– 30° – 40°
– Serum Guide: With serum guide – Without serum guide

All specifications are available in the user manual.