Feature: 1. 4 types to choose: Fish feeding ring has 4 types for you to choose, TypeA (thickened square), TypeB (thickened round), TypeC (single layer square), TypeD (single layer round) ). 2. Sturdy material: Fish feeding ring is made of plastic material, featuring high toughness and high strength, wear-resistant, strong and durable. And it has no odor and will not harm the health of the fish. 3. For aquarium floating food: This product is floating and suitable for floating fish feed. It is suitable for aquariums and fish tanks, just sprinkle fish feed into the pen when feeding. 4. With suction cup: Feeding ring comes with a suction cup, which can firmly suck on the aquarium. The string feeding between ring and suction cup is adjustable and can swing up and down 180 degrees. 5. Practical feeding tool: The feeding ring can prevent food from floating away or entering the filter. So it can improve feeding efficiency, reduce food waste and keep water clean. Specifications: Type: A (thickened square), B (thickened round), C (single layer square), D (single layer round) Color: Blue Material: Plastic Square size: About 8 x 8 x 10 x 10 x 4 x 3.8cm/3.15 x 3.15 x 3.94 x 3.94 x 1.57 x 1.5inch(inner length x inner width x outer length x outer width x string length x suction cup diameter) Round size: About 5.5 x 7.5 x 4 x 3.8cm/2.17 x 2.95 x 1.57 x 1.5inch (inner diameter x outer diameter x string length x suction cup diameter) Package Includes: 1pc x Fish feeding ring Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.