Features: Perfect and premium polyhedral dice for various board games, parties, rpg, mtg, teaching projects, etc. Made of high quality ABS material, easy to roll and hard to damage, with good polishing. Built-in 25mAh Rechargeable battery, the red light is on when charging, the green light is on when fully charged, it takes about 2hrs to be fully charged and the battery life is up to 6 hours. Designed to allow you happy gaming for time with your friends and families. Excellent for table games, show your gaming skills with this dice. Specifications: Material:ABS Luminous Color: Green Red Blue Charging Time: 2 Hour Interface: Type-C Power by: Rechargeable Battery Battery Capacity: 25mAh Working Time: Continuous Use for about 6h Package Includes: 1x D20 Sides, 1 x D12, 2 x D10, 1 x D8, 1 x D6, 1 x D4 Dice, 1 x USB Cable. note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!