Morinaga Weider Tennis Promotion‏

Morinaga is giving away chances for a free tennis lesson from Kei Nishikori, Japan's top professional player, to promote their Weider line of sports drinks. Entry is by collecting enough points from stickers attached to packages and then mailing them in via postcard.

https://cp-weider.jp/

Photo is a web capture for explanatory purposes, copyright belongs to the company.