The B4 clamp is ideal for use on anterior incisors and canines. The B4 clamp aids in isolation by retracting tissue without harming surrounding gingival tissue. Features & Benefits • Satin Steel™ Alloy which resists corrosion while aiding in flexibility and memory. • Matte finish for decreased light reflection and glare. Black Line Clamps (RDCMB4X / RDCM106LX / RDCM106RX) • A dark coating provides enhanced intraoral contrast and improved visual acuity. Non-Latex Country of Origin: USA