[Gift for Pet]: Smooth and flat plate surface, easy to clean, and also can add a new site for activities and observations to your pets, get physical exercise during play. [Easy to Install]: Easy to install in cage, come with wing nuts, screws and washers, the fittings provide a secure grip to hold the shelving unit.No extra equipment is required for installation. [Dimensions]: Two sizes of the wooden board, 15x10cm/5.90x3.93inch and 20x10cm/7.87x3.93inch, 2 pieces of each size, 4 pieces in total. [Natural Wood]: Made of natural pine wood, non-toxic, eco-friendly and safe for chewing. [Application]: Good place for small animals to play and exercise, fit for many small animals, such as hamster, chinchilla, squirrel, budgies, parrot and other similar sized birds.