Check the listing for details. FALCAM F38 Quick Release Multi-Functional Base with Shoulder Strap Hole F38B4406. Condition: New. Listed at 29.99 USD. FALCAM F38 Quick Release Multi-Functional Base with Shoulder Strap Hole, ackscrew Hole for Tripod, Backpack, Shoulder Strap,stabilizer-F38B4406 About this item F38 quick-release design cleverly integrates the traditional Chinese mortise and tenon structure with modern mechanical structure,one push is installed, and one press is removed, easy and smooth.High strength structure, stable and firm Compare with the F38 Quick Release Buckle Base for Shoulder Strap Connects to Arca bases, pairs with top screw tightening for anti-deflection effect. Push once to unlock, preventing accidental button presses Instant installation and removal. Tripod, backpack, shoulder strap,stabilizer, slide and other multi-scene quick installation switching system.