Genuine Mother-of-Pearl Block Inlay set 10-piece set 1st fret - 0.853" x 1.065" (21.68 x 27.09mm) 3rd fret - 0.923" x 0.962" (23.40 x 24.36mm) 5th fret - 0.974" x 0.838" (24.70 x 21.30mm) 7th fret - 1.050" x 0.725" (26.69 x18.38mm) 9th fret -  1.098" x 0.599" (27.90 x 15.23mm) 12th fret - 1.159" x 0.485" (29.43 x 12.30mm) 15th fret - 1.232" x 0.349" (31.31 x 8.90mm) 17th fret - 1.265" x 0.269" (32.13 x 6.85mm) 19th fret - 1.271" x 0.255" (32.27 x 6.48mm) 21st fret - 1.344" x 0.246" (34.16 x 6.29mm) Natural product - figuring and actual color will vary from product images Thickness: 1.55mm (.062")