12 WHEELCHAIRS AND STRUCTURAL PARTS THEREFOR, NAMELY FRAMES, BACKRESTS, FOOTRESTS, PUSH HANDLES, WHEELS, HUBS, TIRES, HAND RIMS, WHEEL LOCKS, BACK UPHOLSTERY, SEAT UPHOLSTERY, SEAT CUSHIONS, SIDE GUARDS, ANTI-TIPS, CAMBERS, AXLES, STEMS, ARMRESTS, SEAT BELTS, FRAME PROTECTORS, CALF STRAPS, BACK PACKS, SEAT POUCHES, SPOKE GUARDS, CASTER PIN LOCKS, STROLLER HANDLES, LUGGAGE CARRIERS, AND BASKETBALL ROLLERS