Features: [ High-quality Material ] : Made of high-quality polyester materials. This ball is reliable and soft. [ Catnip Included ] : The bonus catnip pouch could be an addition to making your pets fun. [ Lifelike Animal Chirping Sounds ] : Designed with lifelike animal chirping sounds can attract your pet to play. [ Transparent Insulation Insert ] : With a transparent insulation insert, please take it off when playing the ball and stick it in when not playing the ball for energy-saving. [ Long-lasting Service ] : The built-in cells make each toy ball last 10,000 times of chirping. Specifications: Material: Polyester Color: Yellow, Pink, Green, Yellow+Pink+Green(optional) Built-in Cells: 3Cells 150mAh 1.5V Item Diameter: 55mm/2.2in Item Weight: 16g/0.6oz Package Size: 1 pc: 555555mm/2.22.22.2in(LWH) 3 pcs: 5555170mm/2.22.26.7in(LWH*) Package Weight: 1 pc: 26g/0.9oz 3 pcs: 61g/2.2oz Packing List: 1 pc: 1Fluffy Ball 1Catnip 3 pcs: 3Fluffy Balls 3Catnips