Vulcan 5.75" Square Court Markers (12 pk.)The Vulcan 5. 75 Square Court Markers are designed and developed specifically for the Vulcan IQ Pickleball system and are featured in many of the game development systems instructional drills. Unlike traditional court court markers where players are coached to hit towards a specific target, the 5. 75 square markers are designed to be used together to create specific sections on the court where players should try to hit. Each 12 pack also includes a