Sufficient Quantity–You will get a total of 20 pcs of our aquarium lid clips , sufficient quantity is enough to meet your daily use needs. Size Information–This aquarium cover clip is about 55mm/2.16 inch wide, 43.5mm/1.71 inch long, 18mm/0.7 inch thick, slot: 10 mm/0.39 inch, suitable for aquariums 8~10mm/0.31~0.39 inch thick. Premium Material–Made of high quality acrylic material, sturdy and durable, not easy to be damaged, thick and strong, it is a good choice to be used as a support stand. Easy to Use–You just need to snap the grooved part of the stand into the side glass of the fish tank, after fixing a few stands you can put the lid on the stand without falling off, note that you need to pay attention to the right size before purchasing. Gift Choice–This stand can be a gift for your family or friends who love to keep fish, turtles and other small animals around you, they will love this thoughtful gift.