Bring Joy: This set includes 2 x 2.16-inch rotating tops, these luminous rail twister toys are easy to play with; simply move your wrist and start playing. These gyro toys attract many children with their fun, and young kids can experience magnetism by playing with the magnetic yoyo toys. Flashing Gyro Wheels: When the rotating wheel spins along the track, the LED light automatically turns on, shining brighter in the dark. Your little ones can use this charming light-up toy even in bed at night, stimulating their imagination and helping them relax and fall asleep faster. Creates a Relaxing Effect: The fascinating light effect and back-and-forth rolling motion of these rotating toys not only captivate children but also have calming effects, helping to curb excessive activity. These cute toys can provide hours of fun, allowing them to concentrate on the vintage toys so they won't want to run around. Quality Toys: The rotating toy's guide rails are well-aligned and equipped with LEDs that won't short-circuit prematurely. Magnetic attraction keeps the gyro wheel stuck to the metal track with minimal force, rolling without falling. These 2 rotating toys emit red and blue light respectively, doubling the fun. Novel Gifts: This set includes 2 magnetic toys. These classic retro-inspired rotating toys make classic and elegant gifts for children aged 12 and up, who will be captivated by and cherish the yoyo toys. Sensory toys are great as Christmas or birthday presents. Features: Strong Function: These flash toys are safe and quiet. While providing joy, they can help children exercise perception and practical skills. The magnetism displayed by these toys contains simple principles, and you can provide a simple explanation to help them further understand magnetism and gravity, allowing them to gain knowledge while playing. Durable and Practical: When the rotating top spins, the LED automatically lights up for more charming light effects. It is very durable; even without batteries, the rotating wheel can be used normally (only the LED light will not turn on). Specifications: Color: red, blue Size (approx.): Rail twirler: 26 x 5 x 3.5 cm / 10.2 x 1.97 x 1.38 inches Rotating wheel: 5 x 5.5 x 2.5 cm / 1.97 x 2.17 x 0.98 inches Package includes: 2 x Magic tail twirlers (wheel contains batteries) Tips: Manual measurement, please allow a slight dimensional error on the item. Due to different screen displays, the actual colors may be slightly different. These toys are suitable for people over 12 years old.