Plastic king bobbins in a variety of sizes are available, for packaging from 4 ounces to 64 ounces of thread. The accurate bobbins with sure-grip surfaces are offered in many colors. Customized printing is also available on bobbins.

Size	Name	Base	Barrel Length
250 x 325	4 oz.	2.5″	3.25″
250 x 425	6 oz.	2.5″	4.25″
300 x 425	8 oz.	3.0″	4.25″
400 x 425	16 oz.	4.0″	4.25″
400 x 538	20 oz.	4.0″	5.38″
400 x 638	24 oz.	4.0″	6.38″
450 x 638	32 oz.	4.5″	6.38″
600 x 638	64 oz.	6.0″	6.38″