Received this product earlier than expected, kudos to that. Sturdy, does it's job. Using it for box squats, box jumps, and box step ups. So far been using the standard 18 in. height out of the box. Best tool for practicing box goblet squats, or any clean or overhead exercises to practice using core muscles and developing core strength. I like the width of the step up. Have enough space for box jumping and step ups. I shall probably do a post review later once a play with the adjustable height. Other than that it serves it's purpose. Hopefully this review will help customers on their purchase.
nlguyen 
