The games can begin with these speedy motion activated illuminated balls from catit design senses'. '.strtoupper('t')hey are suitable for all catit design senses circuit activity toys for cats'. '.strtoupper('a')ll cats love to indulge their natural hunting instincts, especially during the twilight'. '.strtoupper('t')hey enjoy tracking and pouncing, and the faster the prey the more enjoyable it is'. '.strtoupper('t')hese motion activated illuminated balls from catit are perfect for night time hunting'. '.strtoupper('t')he catit design senses illuminated balls are made from transparent, light green plastic'. '.strtoupper('t')hey have a diameter of 3.5 cm and inside the balls there are two red leds which flash alternately'. '.strtoupper('t')he balls light up when they are moved and switch off after about 10 seconds when stationary'. '.strtoupper('t')he balls only weigh about 20 g each, and their smooth surface means that they will rapidly pick up speed and roll around the circuit track very quickly'. '.strtoupper('t')he catit design senses motion activated illuminated balls are also suitable for use with catit design senses play circuit and catit design senses speed circuit'. '.strtoupper('n')ote please note that the battery of the catit design senses lighted balls cannot be exchanged'. '.strtoupper('c')aution as with any other product your pet should be supervised with this toy'. '.strtoupper('p')lease check the product regularly for any damage, and replace the toy whenever it becomes defective or when a piece of the toy goes missing to avoid any harm coming to your pet'. '.strtoupper('r')ecycling is a great way to help protect our environment'. '.strtoupper('f')ind out how to dispose of used batteries and electrical items weee responsibly'. '.strtoupper('z')ooplus se is a member of the european recycling platform weee battery compliance scheme.