1) flame refillable later with butane ,past 55degree water test (good quality )
2)the rate of leaking within0.3%,the rate of inflaming over 98%.
3)refillable tank for recycle using .
4)OEM manufacturer in China ,passed ISO9002 quality system.
5) packing :50pcs /box ,1000pcs per carton .
EX-2151S-1 Windproof lighter with LED