Set of 4 vintage clear plastic napkin holders salt & pepper combo in box unused

These super cool vintage napkin rings are clear plastic squares with salt and pepper shakers integrated into them. They are 2 7/8'' tall and 2 7/8'' wide. They are still in the original clear package and appear to be unused. The package is marked Individual Napkin Ring and Salt and Pepper Set Combination #8049 Made in Taiwan.