Anti-slip floor coverings for use on staircases; Anti-slip floor mats made primarily of rubber, plastic, textiles; Floor coverings of rubber and synthetic rubber; Gymnasium exercise mats; Gymnastic mats; Non-slip bathtub mats; Non-slip mats for baths; Non-slip mats for showers; Non-slip shower mats; Rubber mats; Yoga mat carrying apparatus comprising a central winding core affixed to removable end caps; Yoga mats; Yoga towels specially adapted for yoga mats