Size: L size wrist circumference approx. 7.1 - 7.5 inches (18 - 19 cm), logo engraving, crystal 0.5 inches (12 mm), blue agate 0.4 inches (10.8 mm), cut glass 0.3 inches (8 mm), Rondell 0.3 inches (8 mm), 6 mm) *This blue L product may slightly differ from other products. Due to the nature of natural stones, there may be slight scratches and chipping.