Action exercise cards feature lenticular technology to showcase each of the popular exercises in a fun and motivating way. Just tilt each card forward and backward to see the complete action of each move. Exercises are based on circuit training workouts that are popular in gym classes across the country. Helpful guide provides detailed overviews of each individual workout move to get your class started on their daily exercise routines. Exercises include burpees jumping jacks high knees forward lunges side leans squats and more. Exercise cards are designed for children ages 4 and above. Roylco Action Exercise Cards.