Features: brand new and high quality Made of high-quality of ceramics grinding wheel. Come with screw and wing nut, easy to fix on the cage. Perfect for small birds and parrots. Not only bird stand perch, but also a claw grinding stick! Easy to install, detachable, washable. Specifications: Material: Ceramics Grinding Wheel Color: Blue White/Gray-White/Red White/Orange-White Size (Approx.): 15x2.5cm/5.91x0.98in Weight (Approx.): 240g Package Includes: 1 Piece Bird Perch Stand (Blue White/Gray-White/Red White/Orange-White) note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!