Each shaker has been individually crafted by Glass Act's handpicked artists using a technique called Lampworking. Lampworking is the process by which the artist works the glass over a small flame of intense heat, adding luxuriant colors and shaping the piece to the desired form. Handcrafted of Pyrex® glass with a chromeplated metal top Approx. 2"Dia. x 3"T each Item Weight (Lbs.): 0.1 Hand wash 2piece set Made in USA