Ratchet fixed design on both sides provides a secure mount that resists shield dropping during riding Broad compatibility fits helmets with three buckles as well as many half helmets and 3/4 helmets Easy switch for most 3Snap Shield systems allows quick shield changes without tools Threebuckle mounting with a fixed middle fourfold buckle and grooves for fourfold buckles on both sides; side buckles can slide within about 3 cm for precise alignment Use scenarios Daily urban riding on a threebuckle helmet: reliable shield stability and quick swap as lighting changes Off road or sport use: fast shield replacement between rides or conditions without removing the mount Shared helmet setups or fleet use: adjust to different helmet models (half, 3/4) with the sliding buckle positions for a comfortable fit Key benefits Provides a secure, dropresistant shield mount Keeps compatibility across multiple helmet styles Lets you switch shields quickly and conveniently Adjustable without tools, with a clear 3 cm sliding range for fine tuning