This luminous silicone bracelet is made of 100% environmentally friendly pure silicone and is durable. The bracelet will shine in the dark. It is very soft and comfortable to wear on your hand. It is easy to wear off and waterproof. It is suitable for all kinds of social activities: Star concerts, gatherings, promotional gifts fund-raising activities, charity activitiesThere are many printing methods to choose from, and the size and color can also be customized according to your needs. 7.87" L x 0.47" W