Heavy Duty: 5mm (3/16 inch) Diameter Bar Construction Resistant Powder Coating: Scratch and Rust Resistant Coating for Improved Durability Smoothed Tilted Tip: Polished 45 Degree Angled Tip Prevent Item Slip-off Multi-Use: Designed for High Use / High Traffic Environments from Trade Shows to Retail Stores to Heavy Tools Organization Improved Design: New Invisible Reinforced Bar Attachment Design Polmart Heavy Duty Black Slat Wall Panel Hook 5mm (3/16 inch) bar strength. Available in 4", 6", 8" and 10" length.