Lamp beads: LED lamp beads 6 *Material: ABS plasticProduct weight: 349g net weight 300g with packing boxesOff: Lights stretch， turn off the lights backPackaging: corrugated box packagingPower source: built-in battery and 3X1.5VAAA battery powered (batteries not included)Specifications: Do not stretch 8.6X13cm stretched 8.6X18.6cm portable handle increased 6cm