Simply wrapped - the SQlab handlebar tape size system.
The three rows of knobs serve as a guide for the handle size or Wrap thickness The wrapping thickness can be determined with the SQlab handles via the handle width template.
Size S: The handlebar tape is wrapped so that all three rows of studs can be seen. Size M: The handlebar tape is wrapped so that two rows of studs can be seen. Size L: The handlebar tape is wrapped in such a way that only one row of nubs can be seen.
This winding technique is recommended mainly on the lower link. There you usually reach in the downhills and thus have the highest pressure on your hands.