Opening: 5 mm. Thickness: 2 mm. Material: The pivot hinges are crafted from high-quality stainless steel with a brushed surface that resists rust, ensuring longevity and durability. Easy to apply: The pivot functions on a vertical link system for straightforward and quick installation. Once installed, it remains almost invisible and does not disrupt your door's original style. Unique design: These pivot hinges feature a robust, wear-resistant ball joint, allowing for 360-degree rotation and an easy up and down link function. Beautifully designed: The Pivot Hinges offer a smoother and quieter operation for swinging doors. Versatile: Suitable for swing cabinet doors, closet doors, cabinet doors, and wooden or alloy folding windows. Scope of delivery: Two pieces.