Made of plastic material, high strength, wear-resistant, stable performance and . The cup holder insert can perfectly hold your bottles. These cup holders can be installed such as a couch, table, sofa, golfs cart, dashboard, chair, furniture, etc. Features -Color:Black -Material:Plastic -Size:14.00X11.00X3.50cm/5.50X4.32X1.38in -Type: Outer Diameter: 110mm/4.32", Inner Diameter: 85mm/3.34", Height: 64mm/2.51"; Outer Diameter: 140mm/5.50", Inner Diameter: /4.72", Height: 35mm/1.38". -Made of plastic material, which is safe, sturdy and strong, corrosion resistance, can be applied for a long time. -The installation method of this cup holder insert is simple and convenient, saving your time and energy. -Strong, smooth and durable. Perfect for many RVs, patios, boats, trailers, game tables and sofas. -Wide compatibility, fine workmanship and creative appearance ensure its popularity and practicality. -You can buy it for yourself or give it as a present for your friends or family, give them a little . Package list: 2 x dovetail cup holder inserts 2 holder inserts