electronic stroke enhancement unit in the nature of accelerometers, video cameras, video cassette recorders, miniature video cameras, miniature video cassette recorders, miniature television cameras, video monitors and instructional manual sold as a unit for sports and recreational activities featuring any of clubs, rackets, bats, sticks and rods, namely, in the areas of golf, badminton, tennis, lacrosse, hockey, polo, fishing, baseball and softball; prerecorded video and audio cassette tapes...