This ATEX Certified Equalizer Mini Set includes a flange spreader wedge head, hydraulic cylinder, safety blocks, stepped blocks, lanyard, hex key, manual, and carry case. The set is ATEX certified, which means it has gone through rigorous testing outlined by European Union directives and proven to be safe for use in specific environments with explosive atmospheres. Included within the spreader is an integral hydraulic cylinder, which when used with a separate hydraulic pump (not included), makes it easy to exert powerful forces for separating pipe flanges.