Features: Luminous Toy Replacement Accessories: Experience a unique and exciting sensory experience with our LED vibration flashing ball accessories, suitable for various luminous toy, flashing wand, LED balloons and etc. Selected Material: Made of durable plastic, these balls feature vibrant red and blue LED lights that flash and vibrate when activate. Perfect for children and adults alike, these accessories are great and suitable for those who enjoy sensory stimulation or need a great toy to help with concentration. Party Favor Props: Use them at parties, concerts, sporting-events, or any other gathering where you want to stand out and add some excitement. Great Gift:Whether you're looking for a fun accessory to wear or a unique gift for someone special, our LED vibration flashing ball accessories are sure to delight and impress! Specifications: Product Dimension: approx. 2.2cm/0.87inch Material: Plastic Power Supply: 3 x Button Batteries Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Bag Vibration LED Light Balls(50 pieces)