New refers to the Tiger portable protection ring outdoor survival ring protection essential small Weapon

This product is made of 304 stainless steel, the blade is made of 7 steel, anticorrosive and durable without rust blade, hardness is 58~60, ring inner diameter is 18/20/22 three kinds, the blade spread length is 14mm, the length of knife rest is 20mm, the height is 8mm, the blade is sharp, the bottle cap does not hurt the blade. Suitable for outdoor self - defense travel and other people, small ring tool use fast and easy to lose, has been patented.