SIZE and MATERIALS 2PCS Birds Cuttlebone Holder. It's 4.3"long and 2.2" width, lightweight.Made of high-quality plastic, it is odorless, harmless, anti-bite,waterproof, sturdy and durable. The smooth surface is polished without burrs and will not harm your birds. Clever Feeding DesignThe clever use of the small plastic barrier can hold the cuttlefish bones, corn, carrots firmly in place to ensure that it will not move when your bird eats. Bird feeding cup has a nice little bowl shape at the bottom to catch any crumbs or to hold pieces too small to be clipped in.has a small perch built on to it for the bird to stand on while it eats. Perfect Pet StandThe multi-purpose branch-shaped standing pole can be used to place fruit and food, and it is also convenient for birds to roost or eat. This bracket is the perfect habitat for your bird while enjoying food. Easy To Use and Remove stands with a very easy-to-install knob or nut ,It is lightweight and has small holes. It can be screwed to the bird cage or other places, and it can be placed wherever it can be fixed. Wide Range Of UsesThe perfect pet bird cuttlebone bracket feeders, suitable for parrots, parakeets, budgies, cockatiels, lovebirds, finches, etc. It has a simple design, but very practical in use.