Specifications Name: LED Flash Rolling Ball Port Item: LED Tease Cat Ball Material: ABS Ball diameter: 6.8 cm Applicable: Cat/Small and Medium-sized Dog Features 1.This ball is completely automatic. It will accompany your cat/dog when you are not there. 2.It can also help the cat exercise more and have fun. 3.The ball will run throughout the room and automatically change direction when it collides with a wall or corner. 4.An additional detachable magnetic feather that automatically rotates with the feather when placed on the floor to attract the kitten's attention. Note: 1. The ball moves smoothly on the flat ground, and the movement of the ball will be hindered due to friction. 2. When the battery is low, the ball will move slowly. 3. The battery should be fully charged before storage. 4. Fully charged LED cat ball can provide 30 minutes of playing time. 5. Due to manual measurement and slight color changes in different display settings, allow for a difference of 1-3 cm (0.4-1.18 inches).1.Easy to operate Just open the ball and turn the switch on/off to let your pet enjoy it.2.Environmentally friendly resistant to falling Adopt ABS environmental protection plastic,wear-resistant and fall-resistant,anti-grab and bite-proof,environmentally safe. 3.The magnet is adsorbed The magnet is used to replace the head design,which is easier to replace and switch as desired 4.Avoid obstacles Built-in centrifugal rolling device,will automatically turn when encountering obstacles.