Description:[Material] Made of aluminum, the drop-in cup has high strength, is resistant to low temperatures, has strong corrosion resistance, is sturdy and durable, and can be used for a long time.[Features] The one-piece design is sturdy and durable. The drink can holder can not only hold cups and drinks but also keys, mobile phones, etc. It lets you put small items down from your hands when sitting down.[Easy to Use] The can holder insert is very simple and convenient to use, just place it in the cup holder/drink holder or directly on the desktop.[Wide Application] The drop-in cup is suitable for sofas, tables, cars, and boats, and can hold most cups, coffee cups, beverage bottles, or items such as mobile phones, keys, etc.Specifications:Material: AluminumColor: SilverCup Bottom Diameter: 81mm/3.19inchCup Mouth Inner Diameter: 79mm/3.11inchTotal Size: 102x63mm/4 x 2.48inch(W*H)Package Included: 4 Pcs x Drop-in Cups