*3 in 1 laser keychain *red laser beam *solid brass materials *3 led light with 7 color blink *different blink way control button *with keychain *with 3pcs AG13/ LR44 batteries *colored window paper box package *logo print/ engrave available *teaching, construction, traveling use *perfect promotional item *best gift/ advertising leader 240pcs/ctn; 44x35x34cm; gross weight: 10.5kgs;