The cartridge on a pen line is Cartridge 7701, Cartridge 7704, or Cartridge 7705. The quote names the pen and the cartridge together.
S5 Blue with Cartridge 7705 is a complete line. A round nano tip is a needle option inside one of those three series. The sample pairs that pen with that cartridge, and the bulk carton follows the pair on the sample.
Three accessory series
Cartridges are accessories. Pens, rollers, and stamps are the public lines. Cartridge 7701 is the double bayonet series listed for the K7, the S5, and the T9. Cartridge 7704 is the bayonet series listed for those three pens. Cartridge 7705 is the bayonet series listed for the S5. Each series uses single use stainless steel needles in a sterile pack.
Needle options written with the series
The 7701 page lists 23 needle options, from 1 pin through 42 needle heads, plus nano tips. The 7704 page lists 13 needle options, from 11 needle heads through 42, plus a round nano tip. The 7705 page lists 23 needle options in a blue translucent housing, for the S5. The order names the series, and it names the needle option when the brief selects one head inside that series.
The sample pair and a later order
The sample pairs the named pen with the named series. The bulk carton follows that pair. A later cartridge order names the series on its own line. A pen line on its own names the pen and the finish. T9 and K7 quotations use 7701 or 7704. An S5 quotation can use 7701, 7704, or 7705.