FUNCTIONAL UTILITY TOOL: Including thumb stud screw and hex wrench screws on to most any folder suitable for blade thickness 3mm knife. QUALITY: Made from stainless steel which is solid and excellent corrosion resistance. EASY TO USE: Use these thumb studs to add onto a knife blade (like a for Buck 110) to make it a one handed opener. COMPACT: You can easily attach it on your buck knifes or other knife it doesn& 039;t take up your extra room. GREAT EDC GADGETS: Such the useful gadgets equipped with a buck knife help you to use your knife more comfortable and safely. Specification: Material: 416 stainless steel Color: thumb stud: brass screw/hex wrench: silver Type: 1pack 3pack Suitable model: for buck 110 Clamp width: 3.1mm/0.12inch Suitable blade thickness: 3mm Package: 1 pack: 1 pc x thumb stud 1 pc x screw 1 pc x hex wrench 3 pack: 3 pcs x thumb stud 3 pcs x screw 3 pcs x hex wrench Note: 1. Due to the light and screen difference the item& 039;s color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.