TEKNA® Classics are back for the 21st century! Welcome to the TEKNA Sports division of Tektite. TEKNA knives and flashlights are prized worldwide by outdoor enthusiasts and scuba diverssince 1978. They are renowned for their innovative designs and ruggedness. The design philosophy continues: To provide rugged, functional outdoor sports products in the same way as the original TEKNA company. We are not the original TEKNA, and did not make TEKNA products before 2004. Read some history at the link below. Premium Lithium or alkaline batteries are included with our Tekna-series flashlights. Our handy REPLACEMENT BULB AND BATTERY GUIDE for TEKNA flashlights can be found below. YOU MUST BE 18 YEARS OLD TO BUY KNIVES.