This jumbo size stainless steel cup holder is made from stainless steel. Stainless steel material ensures a rust proof and durable cup holders that you can use for years to come.Each cupholder measures 3.5inches(89mm)inside diameter,4inches(102mm)lip to lip, 2.24inches(57mm) tall.Drop In style, fits about 91mm diameter hole.We recommend you wait until you receive the cup before drilling your mounting holes.Its wide enough for holding most cups, large soda bottle,cell phones, and other items.Great for installing in poker or other game tables,car center console,boat,sofa,bench,RV Camper etc. 10pcs stainless steel cup holders per order.