Instant Assembly and Disassembly ln : for F38 Series cleverly integrates the ancient Chinese mortise and tenon with a modern mechanical structure, a push to install, a to remove, easy and smooth. High-strength structure stable and firm. Compatible with for Arca Specification Base (Note: F38 Multi-hole Quick Release Base is not compatible with plates other than F38 specification.). Stable and Refined, with Great Ability: The F38 Non-slip Quick Release Plate, double design upgrade better non-slip ability, has more reassuring stability. Multi-hole Base Design: Anti-deflection, applicability, both upgrade. The 2-in-1 thread interface allows for easy conversion between 1/4inch and 3/8inch threads to accommodate different equipment. The 1/4inch thread hole ensures secure mounting and prevents deflection Anti-mistouch Design: Compared with the locking mode of dialing the knob, the anti-mistouch structure only needs one push. can be locked twice and can not be pressed, which is more convenient to operate Model Number:for F38 Pro (The product printed words depending on the batch, but this does not affect use) Colour:As Shown Material:Metal Package Contents: 1 x for F38 Quick Release Base kits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.