ENHANCED DURABILITY - Crafted from high-grade aluminum alloy, these M5 thumb lever screws ensure long-lasting performance and reliability for all your rigging needs. UNIVERSAL COMPATIBILITY - Featuring M5 male threading, these rotating knobs seamlessly integrate with various support rigs and accessories for versatile use. PRECISION ADJUSTABILITY - The rotating knob design allows for fine-tuned adjustments, providing optimal control and secure positioning of your equipment. LIGHTWEIGHT DESIGN - Each screw weighs only 0.35 oz (10g), minimizing added weight to your setup while maintaining robust functionality and stability.