Specially designed, this 705 B has a needle without a scarf and a shorter eye.  Manufactured for specific Bernina household sewing machines. 
Models beginning with the digits 5,6,7or 8 (Bernina 500, 600, 700, or 800 series) or the model 900
These machines were manufactured, timed an developed to work optimally with this needle system
Consult your manual for the proper needle selection for your brand and model.
Colour code for needle size - 90/14 Blue
Pack contains 5 x needles