When I use it for dips, pull up, chin up I can feel the machine leaning forward. Make sure you let sit for at least 24 hours to expand, or it will come off the wall. Amateur audiophile. These are a perfect fit with a good arch support, modest cupped heel and plenty of toe room with fully adjustable top lacing to keep the shoes from being loose (to prevent rubbing blisters). My daughter is 8 years and is NOT rough with shoes at all. No se deje engañar por la presentación: la caja está escrita en un inglés incomprensible y la apariencia es de producto barato (lo han puesto todo en el interior de las cápsulas metálicas). They were really cute and sounded comfy. Reçu a lavance. My husband loves this gown on me. However, heres a caveat to the big girls (2X and above)--its not going to be easy putting them on yourself.