4 "aluminum alloy ring with one set of balls with 4 countersunk holes (for each crown) complete with 8 rubber feet (Ø 9 mm x H 4.6 mm). Robust, precise and corrosion resistant, it is perfect for the creation of rotating bases for TV, monitors, displays, sculptures, table centers, etc. The feet can be easily removed to allow fixing to structures or supports by screws.

• Aluminum alloy crowns with Silver finish
• Single row bearing of steel balls
• Internal diameter: 70 mm
• Outside diameter: 120 mm
• Hole diameter: 5 mm
• Hole countersink: suitable for M4 countersunk head screws
• Internal crown hole spacing: 58 mm
• External crown holes center distance: 76.5 mm
• Thickness: 8.5 mm
• Weight: 180 g