Material Selection: Round Cable Grommets are forged from strong zinc alloy, with good texture, anti-corrosion and anti-rust. The thickened material makes it durable and wear-resistant and not easy to break.One-Piece Molding: Built-in cable grommets use fine technology, one-piece molding, no splicing and durability.Special Situation: If you have a lot of cables, you can unload the black plastic circle in the middle, then enough space for you e.Cable Passthrough Size: The borehole diameter 60mm, outer diameter 68mm, passage opening 20 x 20mm, height 12mm.Application Scenario: design zinc alloy round cable grommets apply to your office table or desk and more.The hole covers high-end zinc alloy desktop are an ideal solution for storing cables in the desk,workbench or desk to save space and look good.Properties- Color: Bronze- Material: Zinc Alloy- Drilling Diameter: 60 mm- Outer Diameter: 68 mm- Passage opening: 20 x 20 mm- Height: 12 mmScope of Delivery- 2 x Cable Desk Covers (Bronze)