Canvas Corp. 50 Silver T-Pins in Glass Jar. Pins are approximately 1 5/8 in. long and come 50 to a jar. The heavy glass jar with rubber seal is similar to a mason jelly jar and a great jar to store lots of other trinkets in as well. Jar measures 3 1/2 in. x 1 3/4 in. Pins are a convenient way to secure charms, beads and other findings to all your craft projects and are all the rave these days.