Features:Noval &Interesting : A automatic rolling ball with colorful lED that is attractive for pets such as cats and dogs. With 2 modes, normal mode (rolling) and crazy mode (rolling and bumping). When you want to take a rest but your is still full of energy, this is right choice for you.Safe and Durable: Made of ABS and silicone material, safe and durable, with Smooth and high hardness cover, strong bite resistant, it can run on any type of hard floor such as marble, wood, tils floor, etc. IP54 waterproof level, no need to worry about splashing water and dust into inner.Easy to Play With: ball to open shell and press button for 2s to turn on or turn off.If LED quick flashing means crazy mode, then short press button to switch to normal mode, close cover and rolling on ground and start playing.USB : Built-in 500mAh rechargeable Li-ion battery, full charging with USB cable (included) can working for a long time.Perfect Gift for Your Pets: This ball can inspire cats and dogs' instinct and actively chasing all around, which will consume your ’s energy, and helps pets from feeling depressed.Specification:Color: , Orange, Yellow (Optional)Material: ABS+Silicone+TPUDiameter: 80mm/3.15inchWeight: 165g/5.8ozBattery: Built-in 500 Li-ion BatteryCharge Voltage: 5VWorking Mode: Crazy mode, Normal modeWaterproof: IP54Package Size: 9.5x8.5x8.5cm/3.7x3.3x3.3inPackage Weight: 222g/7.8ozPacking List:1 x Ball1 x Charging Cable1 x User Manual: Noval &Interesting : A automatic rolling ball with colorful lED that is attractive for pets such as cats and dogs. With 2 modes, normal mode (rolling) and crazy mode (rolling and bumping). When you want to take a rest but your is still full of energy, this is right choice for you. color:#c0392b;Safe and Durable: Made of ABS and silicone material, safe and durable, with Smooth and high hardness cover, strong bite resistant, it can run on any type of hard floor such as marble, wood, tils floor, etc. IP54 waterproof level, no need to worry about splashing water and dust into inner. Easy to Play With: ball to open shell and press button for 2s to turn on or turn off.If LED quick flashing means crazy mode, then short press button to switch to normal mode, close cover and rolling on ground and start playing. USB : Built-in 500mAh rechargeable Li-ion battery, full charging with USB cable (included) can working for a long time. Perfect Gift for Your Pets: This ball can inspire cats and dogs' instinct and actively chasing all around, which will consume your ’s energy, and helps pets from feeling depressed.