Made For Compact: 5mm Rectangle shaped design, space saving and eye catching, Ideal for wall and ceiling mount. Special Designed Rings: The circle ring broaden the product use scope, and provide a more convenient experience for gym rings and hammocks. Easy to Mount: This wall ceiling eye hooks is suitable for Mounting to Solid Walls, wood ceilings, cement ceilings, brick walls, Floors, Decks, Trees etc. Can easily mount this to anywhere indoors or outdoors you want. Specification: Shape: Rectangle Material: 304 Stainless Steel Eye Plate Thickness: 3mm/0.12" Ring Inner Diameter: 30mm/1.18" Mounting Hole Diameter: 4.5mm/0.18" Eye Plate Loop Diameter: 5mm(M5)/0.22" Eye Plate: 35 x 30 x 20mm/1.38" x 1.18" x 0.79" (L*W*H) Maximum Load Capacity: 50kg/110 lb Package Included: 4 x Pad Plate with Ring Hooks 16 x Ribbed Plastic Anchors 16 x Screws Installation: 1. Use a pen to mark the location of the hole. 2. Make holes with tools. 3. Knock the anchor into the hole with a hammer. 4. Put the set of screw through the hole fix the hook, tighten the screw until it does not move. 5. When installed on a solid wood door or wall, and the load bearing requirements are not high, just use the screw, no need the anchor. NOTE: Please allow slight errors on size due to manual measurement ! Please stay away from your children. This item contains functional sharp points, please keep it out of reach of children and infants. 【Hassle-Free Warranty】: Eilumduo guarantee high quality and good service. Here with our 90-day money back risk-free purchase guarantee, order now! If you are not satisfied in any way, Refund or Replacement for any quality problem.