the Powerblock Classic be a spectacular product . I purchase it as a upgrade from the elastic band for p90x . the incredible range in weight make they perfect for any exercise or fitness level . plus , they have a small footprint , make they a must have for perfect home gym . my only note be that , lay flat on the floor\/mat\/carpet , the weight might shift and sometimes you have to work a bit harder to change weight . this be why the optional stand be tilted at a angle , to ensure the nested weight be in the correct position . instead of buy that , I angle they on a pair of old 15lb hexagon weight , and that provide a workaround for I .