This set of 6 Ryukyu Rock Pebble Glass Drinking Glasses is perfect for all occasions. The bumpy and striped pattern, along with the multicolor design, adds a unique and traditional touch to your glassware collection. Standing at 4.5" tall, these round drinking glasses are art glass, making them a vintage addition to your home decor. Ideal for serving cold beverages, these low ball rock glasses are a special and eye-catching choice for your kitchen or bar area. I really dont know their origin or maker or what they are called. Everything I find like them says handblown but these have faint seam lines more like from a mold so I dont know. Can't find anything like them. Thanks for shopping.