YINO Stainless Steel Key Shaped Pocket Folding Self-defense Knife Multi-Color Choose,Free Shipping (Black) The unique key chain design style is concise and fashion, home, travel choice for carry-on strap design is unique, novel, fashion, unique! Can be self-defense, when a paring knife or other purposes. USES: Glass stickers cleaning, cutting paper, plastic film, textiles, wood carvings, handicrafts, mobile phone sticker to use, the family of DIY, art making, etc. Blade material: stainless steel , Handle material: Aluminum SIZE: Full length: 12.5CM , Blade length: 5CM ,Closed: 7CM Notes : Because of the blade is very sharp, cover the cap immediately after using it, don't let the children touch.