Features 100% brand new and high quality Made of high-quality resin material, with smooth surface and edges, which is absolutely safe for your fish. Suitable for small sea breams and cichlids, for them to rest or breed.The hidden caves provide you with a visual feast and a "house" for your fish. Your fish can stop for a visit, or find a spot to rest or hide to relieve stress and reduce aggression, perfect for the cichlid family. It is also a great hideout for fighting fish, crayfish or crustaceans. Lifelike natural decoration your fish tank and aquarium. Provide a natural sense of environment, vivid and detailed colors, and add a lively life to your water tank. Specifications: Material: Resin Color: As Pictures Show Pattern: 3-in-1/4-in-1/4-in-1 with Green/5-in-1 Size: 3-in-1-Approx.18.8x8.2x10.8cm/7.40x3.23x4.25in, Entrance Diameter 2.9cm/1.14in 4-in-1-Approx.18.3x8x14.8cm/7.20x3.15x5.83in, Entrance Diameter 2.9cm/1.14in 4-in-1 with Green-Approx.17x7x14cm/6.69x2.76x5.51in, Entrance Diameter 3cm/1.18in 5-in-1-Approx.16x11x12cm/6.30x4.33x4.72in Weight: 3-in-1-Approx.265g 4-in-1-Approx.310g 4-in-1 with Green-Approx.320g 5-in-1-Approx.305g