HIGH QUALITY: This tool set includes a wire rocker leveler and notched straight edge, both made of high-quality 6061 aluminum. Guitar Neck Straightness Check Tool: Designed with two sides of the neck to work with most electric or acoustic guitars, this is an Perfect tool set to your guitar soundboard is straight. FRET Rocker: Suitable for electric guitar, acoustic guitar, , mandolin, banjo, folk guitar, electric guitar, etc. Dimensions and weight: Wire rocker: 100 x 50 x 2mm; Weight: 50g. Neck straight edge: 16.5inch x 1.5inch x 0.08inch (420mm x 37mm x 2mm); CONVENIENT DESIGN: Grooves on one edge of the fretboard guards are a , and rubber bands hold the guards in place to they don't fall off during use; they're convenient, simple to use, and can be freed Use your hands to complete the task at hand. PROTECT YOUR GUITAR: This fretboard protective set is an excellent tool for luthiers, guitarists, and do-it-yourself musicians; the case protects your guitar or fretboard from scratches or damage during filing and polishing processes and Resilient Material: Made of high-quality stainless steel, these fretboard protectors are not prone to rust and deformation; they you for a long time and provide a good and smooth usage experience, making them a must-have for any guitar maintenance tool kit components Colour:Photo Color Material:Stainless steel Package Contents: 1 set of guitar fretboard guards Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.