The quick-release adapters come with two screws and mounting hardware. The latter is the usual cheap, low-quality plastic type. The screws are decent, with a larger gripping surface (so they're less likely to slip). But in my opinion, they're not really necessary when you already offer two magnetic quick-release adapters. The clamps are the typical K&F Concept orange and made of metal. A large rubber pad in the middle prevents slippage and likely dampens some vibrations. The adapter itself is well-made, and the locking and unlocking mechanism works well—even better than the original, in my opinion, for those with larger fingers. The price is just about acceptable, but it would probably be better to charge a little less and omit the plastic hardware. Nobody buys these adapters for that reason... but rather because you need new adapters for the Osmo Nano and Osmo Action 6 if you don't want to mess with the magnets of the predecessors. Due to the good build quality, the large rubber pad, and the smoothly functioning hooks, I'm giving it 5 stars. At this point, a note to the 1-star review from a fellow Vine user: if you're testing an adapter that clearly states "Osmo Nano" and "Osmo Action 6" in the title, then you should know what you're doing! DJI has introduced new, twist-proof dual-direction adapters where the magnets work in both directions – whether front or back. This was sometimes annoying before (especially if you had it mounted and then wanted to film in the other direction), and now there's a solution. With an Osmo Action 5 (or its predecessor), you encounter exactly the problem described in the review, which led to the drastic downgrade to the lowest rating: you have to work "against" the magnets. If you're not up-to-date, don't read the title or the product description – why do you feel the need to review products? In short: the adapters are compatible with DJI's new technology and therefore not recommended for previous models!