This came to me some years ago in a purchase of items from a Philadelphia gift store that had closed. This group is of particular interest as it represents the products as they would have received from the manufacturer in Hong Kong, before being placed on display. The yo-yo's are light plastic and 1 3/16" diameter, and about 7/8" thick. I have not tried any of them but I have little doubt they never worked worth a hoot but would still be fun to whirl around. The outer bits are hard plastic and the center piece is a flexible ring with string attached intended to be pulled off but seem it would be hard to get that to stretch enough today. About 5 1/8" x 6 1/4" is the attractive color card as would be used in a shop to let the customers know. I believe these to be from the 1960's. Included are the five yo-yo's you see, all are different. If you can't see the price sticker they were going for a dime each. Fun novelty item for the toy collector, and having a bit of historical value as regards marketing of Asian products in America following the second World War.