This is a triangle toy base that is made of 3--12" wood dowels that are approximately 7/8" wide. The toy base has 3--12" pieces of 2.0mm Nickel Plated Chain that have a 25mm Nickel Plated Bell on each end and are connected at the top by a Medium Nickel Plated Pear Link. This is a wonderful toy that you can design by putting your birds favorite items on the chain or leaving it as is. The items need to have a 5/16" hole or larger to fit the chain. This is perfect for medium to smaller large birds. Replacement dowels are now available. CLICK HERE TO PURCHASE REPLACEMENT DOWELS.