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Green laser pointer with USB port and u-disk
Name:green laser pointer with U disk ,ballpen
Size: 17*150mm Material: metalBattery:lithium battery Wavelength: 532nmPower:classII<1mw or classIII<5mwAppearance:cylinder shape Logo:print availableColor:silver/any colorUnit weight: 49.1gGreen laser pointer with USB port and u-disk