Balance – when the working ends are aligned properly to the long axis of the instrument handle, finger pressure can be applied more effectively to reduce muscle fatigue on the clinician’s hands and/or forearm.[1] Diameter – the handles with larger diameters allow the instrument to be held easier and reduces muscle stress of the clinician’s fingers.[3] Texture – the texture of the instrument handle increases control, such as finger grip, and reduces hand fatigue.[3] Weight – the handle’s hollowness allows the instrument to be more lightweight and increases the clinician's tactile sensitivity.[3]