10x Guitar Back Center Decoration Package include :  10 pieces Material :  Wood Length:  25"    (640mm)        Width:  15/64"    (6mm) Thickness: 3/64"   (1mm)  It's a good choice to decorate your guitar and other beloved things. Super long, super wide, super beautiful, super cost-effective, super cheap!!! It's a good choice for you to build and repair guitar. The length of the guitar body is about 20" (520mm), and 1 piece of 25" (640mm)  length can be used as the center decorative strip of D-type 41 inch guitar  back.