Also known as: cross jacks, crossover jack, crossover jumping jack
/cross_jacks 25/cross-jacks 25 · /cross jacks 25/cross_jacks 3x10/cross-jacks 3x10 · /cross jacks 3x10 · /log cross_jacks 3x10/cross_jacks 3x10@45/cross-jacks 3x10@45 · /cross jacks 3x10@45 · /log cross_jacks 3x10@45Underscores, dashes, and spaces are interchangeable — every spelling above logs the same exercise.