Saddles that adjust for height, intonation and string spacing! Schaller's versatile solidbody bass bridge features threaded roller saddles. They provide smooth tuning and permit variable string spreads from 2-3/32" to 2-1/2" (53.39mm to 63.50mm), ideal for custom neck widths. Each saddle is adjustable for height and intonation, and grooves in the heavy cast baseplate prevent lateral saddle movement for more stable tuning. The strings mount at the rear. Screws included.