QBL1025 Features: * Fish house * Material: High quality plastic * Uses radar or sonar navigation systems such ghost knife fish, baby whales, etc * Radar tells them that they are hidden, making them highly visible for maximum viewing pleasure * Clear cylinder with 2 legs to anchor in aquarium gravel Options: * Available in 2"" x 6.5"" and 2"" x 10"" sizes Dimensions: * Dimensions: 2"" W x 6.5"" D * Dimensions: 2"" W x 10"" D