BLUMOTION Retrofit for European Hinges brings smooth, silent closing to your cabinets. It uses Blumotion technology to react automatically to door size, weight and closing speed, braking the motion for a gentle close every time. This device mounts directly to the cabinet, so you can add soft-close performance to existing European hinges without replacing them. One is usually enough for a single door, but larger or heavier doors may need an additional piece. Mounting hardware and instructions are included.