Material: Molded injected plastic with drain holes to prevent moisture build-up; smooth finish for easy cleaning. Convenience: Side drain prevents overflow, so no need to empty after rain or spills. Versatile Use: Easily installed in boats, cars, RVs, game tables, sofas, and more. Dimensions: Top: 4-1/4", Bottom: 2-3/4", Depth: 3-1/8", Drain Hole: 1/4". Package Includes: 8 Marine City white plastic cup holders with side drain. Here at Marine City Hardware, we specialize in marine hardware products. We are all family and are all working together to bring our customers exactly what they need. Our motto is high quality and taking care of our customers. Everything is double-checked before being sent out to ensure the highest quality.