Signalling prism for each of the lanes of an athletics track. It includes a vinyl sticker on each of the 3 vertical sides with the lane numbers, from 1 to 8 for AC125, from 1 to 6 for AC127, from 1 to 9 for AC128 and from 1 to 10 for AC1219.
It consists of a triangular base shell made of fiberglass-reinforced polyester, on which two indicators are mounted: one yellow and black for the first false start in combined events, and the other red and black for false starts with disqualification in the rest of racing events, in accordance with the Regulations of the International Association of Athletics Federations (IAAF).
Its own particular design allows stacking for optimal storage and transport.