Item Type: Fidget Ball Puzzle Game Material: Plastic, electronic components Size: Approx. 12.5 x 14.2 x 9cm / 4.9 x 5.6 x 3.5in Battery: 3 x 1.5V 65MAH AG10 battery (built in) Package List 1 x Puzzle Ball 1 x Pulling Rope 1Stress Relieve: Fingertip speed puzzle massage ball toy is a good choice to help you effectively relieve stress and anxiety. 2Ladybird Shape: Comes with a unique ladybird shape, vivid and cute, which is very easy to attract the attention of children, funny and easy to play. 3LED Light: Puzzle ball with colorful LED light, and will automatically change color. Built in high capacity battery, which can be continuous light 2426 hours. 4Safe to Play: The edge is smooth and round, without burr, and it is not easy to damage the skin when playing or massaging with it. Ideal for adults and children. 5Massage Function: Helps to strengthen hand muscles and increase hand and finger flexibility. It can also be used to massage parts of the body.