Created for the advancing string player, these bows feature sticks made from Glasser's own proprietary advanced composite fiber. The bows are mounted with the highest quality German-made ebony frogs from Paulus. Violin, viola, cello and French bass frogs are fully lined with a double eye. The German bass frog is half lined with a double eye. All advanced composite bow frogs are nickel silver mounted with a wire grip. The frogs have a white mother of pearl slide and eye. These bows feature the resilience and liveliness of wood while retaining their strength and stiffness. Unlike wood, they will never warp or need recambering. Standard models come in our new Glasser shade of brown with premium white unbleached horsehair.