Accessory for manually-operated exercise equipment, namely, accessory attachment to increase muscle resistance; Aquatic canine treadmill; Archery sets; Baseball and softball bat racks; Baseball bat racks; Basketball hoops; Body-building apparatus; Body-training apparatus; Bowling pit mats; Boxing bag swivel mechanisms; Boxing bags; Boxing swivels; Climbing skins for use with touring skis; Elliptical exercise machines; Equipment for playing a vertical hoop target game; Equipment sold as a unit...