Nice Inlay, 10 pc 6 millimeter Dot Set 6mm set diameter is 6mm (..236", just under 1/4") 1.3mm (slightly over 3/64") White Mother of Pearl (MOP) Inlay Set PLEASE NOTE: This is a natural product, colors will run from a off white to almost cream in color. Specifications: 10 Piece White Mother of Pearl Fretboard Inlay Dot Set 6mm (.236") slightly under 1/4" finished diameter 1.3 mm Thickness (just over 3/64") Part dimensions are: .236" (slightly under 1/4", 6mm) diameter 3/64" overall thickness (slightly thicker than 3/64" a 1.3mm) Origin: Australia (Pinctada maxima or White Lip Pearl Oyster) Nice inexpensive inlay set. PLEASE NOTE: This is a natural product, colors will run from a off white to almost cream in color.