Features:

unit size:8*112mm

Durable - lasts at least 12,000 strikes
Works equally well when wet
Premium quality
Approved by the International Survival Instructors Association
Produces a 3000°C (5,500°F) spark
Works equally well in rain or snow, wet or cold
Lights campfires, stoves, gas-barbecues
Bright spark - can be used as an emergency signal