A knee pad with rollers includes an upper leg portion with straps configured to adjustably secure the upper leg portion to the wearer's thigh, a knee portion with straps configured to adjustably secure the knee portion over one of the wearer's knees, and at least one flexible connector that connects the upper leg portion to the lower knee portion. Spherical rollers are disposed within sockets on a front face of the lower knee portion. Each spherical roller is configured to freely rotate within its respective socket. The wearer may wear the knee pad with the rollers installed so that they can easily and comfortably maneuver in any direction while supporting themselves on their knees. Additionally, the rollers can be selectively removed in situations where it is desirable to utilize a static or stationary knee supporting surface.

In accordance with example embodiments of the present disclosure, the invention provides a sports apparatus having an upper surface and a lower surface, the upper surface designed to slide on slippery surfaces such as snow, ice or sand and the lower surface having wheels and thus designed to glide along smooth hard surfaces.

A rolling knee support device is attached to each knee of the user for support thereof when the user is in a kneeling position. The device has four swivel caster type wheels with a threaded stem for being releasably mounted into one of eight holes defined in a double-curved lower surface of a base of the support. The four wheels can be moved and arranged such on the double-curved lower surface so that the supporting feature of the knee supporting device can be modified and customized according to the needs of the worker and/or the particular job whereby the worker is supported in the most comfortable, balanced, and efficient position and orientation for any particular job. Straps with fasteners are used to secure each rolling knee support device to each knee of the user.

A motorcyclist's knee-roller comprises free rolling abrasion resistant balls incased, so as to be capable of rolling free when engaging the road or ground surface. The knee-roller case portion can be connected to fastening sheet material to the shape of a co-operating fastening sheet material

In accordance with example embodiments of the present disclosure, the invention provides a sports apparatus having an upper surface and a lower surface, the upper surface designed to slide on slippery surfaces such as snow, ice or sand and the lower surface having wheels and thus designed to glide along smooth hard surfaces.

A surface walker for human beings consisting of a chassis holding four articulated, movable limbs for walking. Each limb rests on foot, ski or float. Chassis is topped with cushioned seat whereon user lies prone on chest and belly with access to limbs, which are activated with arms and legs. Chassis height and limb length are adjustable. User regulates walking gait, limb stride and motion frequency of limbs. Walker advances on land and water and diverse landscapes. Design incorporates optional computer-controlled power assistance for walker motion and use of mechanical hand for enhanced traction and anchoring effects.

A surface walker for human beings consisting of a chassis holding four articulated, movable limbs for walking. Each limb rests on foot, ski or float. Chassis is topped with cushioned seat whereon user lies prone on chest and belly with access to limbs, which are activated with arms and legs. Chassis height and limb length are adjustable. User regulates walking gait, limb stride and motion frequency of limbs. Walker advances on land and water and diverse landscapes. Design incorporates optional computer-controlled power assistance for walker motion and use of mechanical hand for enhanced traction and anchoring effects.