Checkpoint was founded more than thirty years ago by the inventor and CEO Mike Marczynski. Mike, who at the time led a fleet of commercial vehicles, had a problem concerning loose wheel nuts on one of his vehicles. After doing his research and finding no solution to help stop the wheel nuts loosening, he started work on the design for what would be the Checkpoint and the world’s first loose nut indicator. After months of testing, Mike finalised a design which he was pleased with and felt suited the requirements of his fleet. The improvement Checkpoint provided to his fleet safety and the time saving it gave to daily checks, filled Mike with confidence that the product had the potential to do the same for other fleets.