Zob OG Beaker Bong Zob Glass makes this awesome little beaker. It's approx. 14 inches tall. Don't let it's size fool you... this beaker gets the job done. It features a three-prong ice pinch that lets you load the tube with ice, and get ice cold rips. A diffused down stem provides excellent diffusion. This beaker is made of 5mm. thick American glass. The folks at Zob really know style and function! Comes with the Zob standard 14mm ground glass slide. Features a Three-Prong Ice Pinch. Slide: 14.00mm. ground Glass Slide. Height: 14.00 inches. Base Width: 5.50 inches. Glass Thickness: 5.00mm. Down Stem: 6.50 inch Diffused Down Stem. Tube Diameter: 5.50mm. Made in California.