Material:plastic Size: 25mm/35mm/50mm/60mm/ 80mm Diameter for the around circle Color: Black / Gold / Silver Allows wires and cable to pass through safely and neatly. Keeping your complete pc or equipment cables tidy to present a neat. Used widey in office, home, hotel, bank, etc. Also appropriate for vents, wine cabinets, shoe cabinets, wardrobes, etc. The kit includes: 1Pc * Wire Hole Cover Note: 1. Please allowed 1-5mm variations due to handbook measurement, thank you on your understanding! 2. Due to the adaptation between assorted monitors, please remember the fact that the picture won't reflect the particular colour of the item.