This oversized Industrial Pyrex glass bell jar is certainly a unique and an impressive art object. At 29" height and 20.5" diameter this bell jar, dome, clouche can be used any way your imagination takes you. Once used as part of a laboratory system, it features a 2.5" diameter neck and side arm with a wide ridge at it's open bottom. There are two bell jars available - the other listed separately is the same size but larger neck and side arm. The video shown is of the other bell jar available shown on this listing to communicate it's large scale.