This fun interactive Bird Tape Dispenser Bird Toy comes loaded with a roll of register tape for your bird to shred! The bird toy includes 2 round acrylic disc approximately 2 3/4" in diameter and mounts on the inside or outside of any bird cage. This toy is easily refillable with register or adding machine tape. Do not use thermal paper to refill this dispenser, as it has been known to be harmful to birds if ingested. The toy measures 3" x 2.75".