ENHANCED DURABILITY - Constructed with high-quality materials, this 144mm speedring insert ensures long-lasting performance, withstanding frequent use in professional photography settings. WIDE COMPATIBILITY - Designed for Balcar, White Lighting, Alien Bees, and Einstein flash units, this speedring insert offers seamless integration with your existing lighting equipment. SIMPLE AND SECURE - The Glow EZ Lock system allows for quick and easy attachment and detachment of softboxes, providing a secure fit that prevents light leaks during shoots. LIGHTWEIGHT DESIGN - Weighing only a few ounces, this speedring insert adds minimal weight to your setup, enhancing portability and reducing strain during on-location shoots.