The Stilo visor tear offs are used to keep your vision clear. To suit all Stilo Stilo ST5 (F N, F and GT) formula and karting helmets, and the older ST4 (F).The end of the tear offs is easy to locate, even with gloves onWill maintain visibility on longer races or throughout a seasonAvailable in various options:ST5 helmet - 3x3 pre-stacked kit with 9 in total or 3x10 pre-stacked kit with 30 in total.ST4 helmet - Single set of 5 individual visor tear offs or 4x3 pre-stacked kit with 12 in total.