• Dual 20700/21700 SERIES Device
• Tubes are interchangeable with other tubes that will be available
• Telescopic adjustable Top Cap to accommodate Different 510 pins
• Copper Contacts made out of high grade 110 Copper
• Strong N52 Button Magnets
• Locking Button to prevent mishaps
• Limited Lifetime warranty
• Approx weight : 0.7lb
• Made in the United States of America

Please note this is a series mechanical mod, a great understanding of ohms law and battery safety is needed, if you do not have a great understanding of either of those please do not purchase this product.