Features: It provides an additional level of agility- and heightens your cats natural hunting instinct. Transparent-mesh and feather toy at each end provide the great active experience and enhance playing-. Dangling sisal-ball and feather toy encourages exercise for cats and satisfies cats with hours- of playing-. The tunnel- equipped hanging-ball at the entrance add more way to have fun that brings hours- and hours- exercise and self amusement as bating and swatting. Solid sprung steel frame with protective ends gives an added level of safety for your cats. Specifications: Material: Steel Wire, Elastic-Net, Feather Inner Diameter: Approx.20cm/7.87inch Length: Approx.60cm/23.62inch Type: Sisal-ball, Mouse(optional) Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Cats Tunnel