WOD Toys Barbell Mini - Adjustable Barbell Set for Kids Fitness - Safe, Durable and Kids Fitness Toys. WOD Toys Barbell Mini - Promotes safe, playful fitness participation and so much fun!. Now your kids can join in the fun of overhead squats, cleans, & all those lifts you love to do. Includes 1 Mini Barbell, 4 Mini Bumper Plates and 2 Mini Collars. 2.2 pounds, 3 feet long, 7 inches high. For 3+ years of age.