Monster Motion Safety™, and parent company Checkers Safety Group, has been protecting people and assets since 1987 as a leading manufacturer of wheel chocks, warning whips, industrial signals, traffic & parking lot safety products, and more. With over 25 years of experience, Checkers Safety Group third party tests and certifies most of our products. We have also worked with industry leaders and safety managers to field-test our products under various conditions to evaluate the safety and effectiveness of each product.


Monster Motion Safety™ Wheel Chocks have been field-tested by expert Checkers Safety Group team members under various conditions to prove our products prevent non-motorized, uncontrolled movement of on and off-road vehicles.

Testing Monster chocks on a 400-ton haul truck load.

Monster has also worked with a third-party laboratory to certify that each model meets the specifications indicated on the Monster Motion Safety™ Wheel Chock Reference Guide. Specific models of our wheel chocks meet specifications required by MSHA (Mine Safety and Health Administration), OSHA (Occupational Safety and Health Administration), SAE (Society of Automotive Engineers), NFPA (National Fire Protection Agency), and the DOT (Department of Transportation). Thorough testing must be completed at each location by users to ensure that specific wheel chocks will meet your specific chocking requirements.


Monster Motion Safety™ Warning Whips meet the standard height and visibility requirements set forth by individual mines across the world. These heavy duty whips are engineered to withstand the harshest conditions and the most extreme temperature environments around the world.


Monster Motion Safety™ Warning Lights have been tested by independent third party laboratories to meet specific requirements. Our Barricade Lights meet ITE (Institute of Transportation Engineers) specifications and are NCHRP-350 (National Cooperative Highway Research Program) compliant. Our Strobe Lights meet SAE (Society of Automotive Engineers) J845, Class I, II, and III specifications.