Features The strong durability of such rail accessory has the ability to maintain its high performance for a long time. And the shaft bracket can bear a high weight, which is lightweight and high strength in practical life. Safer to fix, the exquisite base is practical, which keeps the quality guaranteed. The fastener is made of aluminum alloy material with oxidized surface for high adoptability. Simply installed, this lightweight and practical fastener is made with exquisite workmanship. Feature: 1. The strong durability of such rail accessory has the ability to maintain its high performance for a long time. 2. And the shaft bracket can bear a high weight, which is lightweight and high strength in practical life. 3. Safer to fix, the exquisite base is practical, which keeps the quality guaranteed. 4. The fastener is made of aluminum alloy material with oxidized surface for high adoptability. 5. Simply installed, this lightweight and practical fastener is made with exquisite craftsmanship. Specifications: Item Type: Fixing Bracket</a>Model: SK10 Outer diameter: approx. 42 mm / 1.7 inches. Inner diameter: approx. 10 mm / 0.4 inches. Thickness: approx. 14 mm / 0.6 inches. Use: General Weight: approx. 0.05 kg / 0.1 lbs. Lubricant: no lubrication. Oil lubrication Method: drip lubrication Product dimensions: approx. 4.3 x 3.2 x 1.5 cm / 1.65 x 1.34 x 0.55 inches. Package list: 4 x SK10 Fixing Bracket Package List 4 x Fixing Bracket SK10