[High-quality material]: It is made of high-quality aluminum alloy and stainless steel. The surface of the buckle is painted with paint, which is not easy to corrode, and the whole is not easy to deform, sturdy and durable, which can effectively prevent the outdoor camping tent from falling off. [Slip & Adjustable Spring]:These deck nails are designed in an octopus shape, and the bottom double hook design creates stability better and prevents the nails from falling off or rotating due to the shaking of the tent. The telescopic spring shape can be adapted to decks of different thicknesses [Easy installation] D-shaped carabiner is attached, which is convenient for you to fix the tent on the octopus deck nails. The installation method is very simple. Just insert it into the gap and rotate it to fix it. Binding with D-shaped carabiner and tent rope. Note: Please ensure that the deck gap is larger than 2.03mm and less than 30.43mm before use. [Wide application] It can be used to install and fix tents and awnings on decks or wooden boards during outdoor camping or home gardens and balconies. [Package includes] It contains 10 octopus deck hooks with carabiner. Please confirm the size before placing the order