【PREMIUM QUALITY】The knife thumb studs are made of aluminum alloy CNC, lightweight, solid, excellent corrosion resistance, good thermal stability and compact. (NOTE: The knife thumb stud compatible with 13mm round thumb holes only!) For example, the knife thumb studs work well with Spyderco Delica 4, Spyderco Paramilitary 2 (PM 2), Spyderco Manix 1, but not Manix 2!

【EASY TO USE】Use these thumb studs to add onto a knife with 0.5 inch round hole thumb stud (like Spyderco Endrua, Spyderco Paramilitary 2 (PM 2), Spyderco Delica 4, Spyderco Manix 1, Spyderco Tenacious etc ) to make it a one handed opener. Please note: The exact size of the Spider Knife Thumb Hole may vary from edition to edition, year to year, or special customization. Please make sure your knife thumbhole diameter is around 13mm (0.5inch ) before purchasing!

【GREAT DESIGN】This thumb stud is an awesome add-on that makes opening your knife as simple as hooking it on your pocke as you pull it out. Perfect to upgrade your spyderco knife. After installing this product, you can easily open and close the knife and enjoy the fun of pushing the knife.

【POTABLE AND COMPACT】You can easily attach it on your spyderco knife or other knife, it doesn't take up your extra room. Everyone's hands are different in size and dexterity, the installation process takes less than a minute. Such the useful EDC gadgets help you to use your knife more confortable and safely.

【SATISFACTION GUARANTEE】Quality and your satisfaction is our top priority. LYPOBALA knife thumb stub provide one year warranty and no reason return policy to ensure your happy purchase experience. PLEASE NOTE: This product only includes 1 * knife thumb stub, other items in the photo are for demonstration purposes only.