Description: Heavy Duty diamond eye plate with round staple ring and 4 pieces mounting screws Used for secure fastening Multi-purpose, commonly used for marine boats, climbing mountaineering tool, hammock, aerial yoga, boxing equipment Strong corrosion resistance and durable in saltwater circumstance High polished surface for mirror-like appearance and to match modern watercraft/boat/yacht Specification: Material: 316 stainless steel Color: Silver Max. Capacity: Approx. 200KG Diamond Plate Size (L x W): Approx. 8 x 4.8 cm/3.15 x 1.89 inch Mounting Holes Diameter: Approx. 0.6 cm/0.24 inch Ring Inner Diameter: Approx. 4.6 cm/1.8 inch Steel Thickness: 0.8 cm/0.3 inch Screw Length: Approx. 3.2 cm/1.26 inch Screw Diameter: Approx. 0.4 cm/0.16 inch Package Includes: 1 Piece Eye Plate Hook 4 Pieces Screws 4 Pieces Expansion Anchor Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!