Abstract: A tire-like exercise device having a substantially round outer periphery and a non-round inner periphery. The non-round inner periphery may be substantially rectangular and have one or more flat regions to provide hand and toe holds for performing various exercises. A first valve allows the firmness of the Never Tire™ exercise apparatus to be adjusted by increasing or decreasing inner air pressure. A second larger valve allows ballast, such as water or sand, to be input to the device to stabilize the apparatus against slipping and sliding.

Abstract: A training assistance device capable of significant height adjustment has at least one adjustable, and preferably, two adjustable arms to allow it to simulate a defender in a variety of sports including baseball, basketball, football, hockey, soccer, and volleyball. Structure facilitating transport of the device from place to place is included.

Abstract: A training assistance device capable of significant height adjustment has at least one adjustable, and preferably, two adjustable arms to allow it to simulate a defender in a variety of sports including baseball, basketball, football, hockey, soccer, and volleyball. Structure facilitating transport of the device from place to place is included.