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 notch to work with most electric or acoustic guitars, this is an Perfect tool set to ensure your guitar soundboard is straight. FRET Rocker: Suitable for electric guitar, acoustic guitar, bass, 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 nice touch, and rubber bands hold the guards in place to ensure 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 bass fretboard from scratches or damage during filing and polishing processes Durable and Resilient Material: Made of high-quality stainless steel, these fretboard protectors are not prone to rust and deformation; they will serve 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.