ITEM NAME:Aluminum Alloy Sanding Bar Practicing Guitar Leveling Beam Fingerboard Guards Description: Can be applied to polish clean guitar fret. Main body fret leveling beam is made of aluminum alloy, durable. Guitar fret leveling beam: self- sandpaper strip on four sides, meet your different polishing needs. Guitar fingerboard guards can prevent scratching damaging guitar bass fretboard when filing polishing frets. Suitable fret leveling electric guitar, acoustic guitar, electric bass, etc. Specifications:&;nbsp; Product name: Guitar leveling beam Color: Black+Silver Material: Aluminum alloy Leveling beam size: About 15 x 4 x 2.5 cm Package Included: 1pc* Guitar leveling beam 2pcs* Fingerboard guards Note: Transition: 1cm=10mm=0.39inch. 1.Due to the light and screen difference, the item's color may be slightly different from the pictures. 2.Please allow 0.5-2 cm differences due to manual measurement..Main body fret leveling beam is made of aluminum alloy, durable. Suitable fret leveling electric guitar, acoustic guitar, electric bass, etc. Guitar fingerboard guards can prevent scratching damaging guitar bass fretboard when filing polishing frets.