ITEM NAME:1 Piece Radius Sanding Blocks For Acoustic Guitar Bass Fret Leveling Finger B2A5 1 Piece Radius Sanding Blocks For Acoustic Guitar Bass Fret Leveling Finger B2A5 Accurately true or change a fingerboard's radius. Used for shaping a radiused fretboard and leveling installed frets Dimensions: As the pictures shown When working on compound radius fretboard, simply change blocks as you progress along the neck. model:16# Item Name: Radius Sanding Blocks Material:Beech Color: Wood Suit for:Acoustic Guitar Quantity: 1Pc Package Contents: 1* Radius Sanding Blocks