For your consideration, here is a Boeing Promotional Plastic White Yo-Yo.  It is not marked with a maker.  It has some wear on it.  The diameter is 2 1/8 inches and it is 1 1/8 inches thick. 

It will be mailed in a box for protection.  Item pictured is the actual item up for sale and comes from a non-smoking household. (691.5c31a-.6hc)