Package includes 1 guitar fret Hammer ,1 guitar fret crowning file, 1 Guitar fret rocker, 2 fingerboard, 2 grinding stones. | Fret Hammer - Made of stainless steel and rubber.Durable metal tubular,ergonomic design,Rubber wrapped handle, anti-skid and comfortable for use. Sturdy and comfortable hammer to fret fingerboard on stringed instruments (guitars,ukulele,mandolin,bass,etc) | Fret File - Made of stainless steel and rubber handle. With same filing size on both 2 edges, narrow fret crowning file after leveling. Fit for most fret specification on the markets such as electric guitar, acoustic guitar ,bass, Ukulele etc. | Fret Rocker & Fingerboard - Made of stainless steel. The Fret rocker has 4 flat and straight edges, which can help your to detect any discrepancy existing in frets height.The fingerboard designed to protect your guitar or bass fretboard from scratching or damaging while filing and polishing | Grinding Stone and Service - Size: 10 x 1 x 1 cm ; Professional tool for polishing saddle, nut and frets; we offer a lifetime warranty, please contact us if you have any questions, we will replace it.