Use two CR1220 button batteries, and gently push the switch to start the power supply. Strong magnet design, large suction, easy to wear and remove operation. The battery box is made of environmentally friendly ABS plastic, strong and durable, the surface can be printed logo pattern. The overall bracelet is made of a high-transparent TPU light guide bar, good light transmission performance, good light guide effect, can do laser, and silkscreen logo. Multiple light colors, soft LED light source, dazzling colorful shining. Widely used in bars, KTV, concerts, and so on. Measuring 8.27*1.18 inches, this custom trampoline atmosphere magnetic light-up bracelet. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Tailored branding: Supports logo imprint and design personalization. Product Highlights: Portable, durable, practical for daily use.