Save some money and make your own home gym equipment with this crossfit plyo jump box - it only takes a few hours to build and is solid as a rock. - Tap the pin if you love super heroes too! you will LOVE these super hero fitness shirts!
Don't let yourself get lazy with your box jumps today. Give your best every time you jump. Burning muscles hurt a lot less than a nice goose-egg because you decided to take a jump off. You can always do 12 maximal jumps, right?