This original handmade aquarium turtle support item features 2 large (8 ounce) 1 medium (4 ounces) food/water grade plastic bottles manufactured in the USA to which high quality, strong suction cups and colorful plastic plants have been added. Comes with 3 extra suction cups. Suction cups will stay put a week or two but may loosen sooner depending on many factors affecting the glass inside the tank and time adhered. You can then change to the spares can or you can try to extend the time by rinsing and paper toweling the cup. Information on the detailed instruction sheet will help you keep them in place. Bottles must be filled with water for flotation and pressed HARD against the glass a few inches from the top so the turtle can rest, shell gets air, head and neck not strained to lift up and breathe. He sleeps on them and watches Animal Planet or other shows on one set and enjoys the spray bar on the other end. Turtle weighs 8 ounces and shell is 6". Weight tests: Two large held 3 pounds of weight (photo). 3 medium held 2.5 pounds. Combinations listed: 2 large; 3 medium; 3 large, 2 Large /1 Medium this listing, Plant colors are random. Your turtles will be happy! Turtles with shells appeared over 250 million years ago! Predating the dinosaurs. They are considered lucky in every culture worldwide. Silver plated turtle earrings included! Tanks!