The Libec BR-4 Mid-Level Spreader is a direct replacement for the BR-3S. More user-friendly and durable than its predecessor, the BR-4 is designed to offer added stability to T72, T98, and T98C tripod systems. Best used on uneven surfaces where ground spreaders won't lie flat, the BR-4 also keeps the tripod's legs from twisting. The included FP-2 large rubber feet ensure further stability.