The Vintage Technasonic Check-Go Pro Golf Ball Sweet Spot Finder is a portable alignment marker designed for golf enthusiasts. Made in Japan, this battery-operated device helps golfers improve their accuracy and precision on the course. With its sleek design and ease of use, this vintage golf training aid is a must-have for any golfer looking to perfect their game, especially in finding the sweet spot on the ball for optimal performance on the field. Bought in 1993.