Tinksky Door Knob Vintage Door Drawer Pull Handle Metal Semicircle Knobs Pack of 4 (Black) Color: Black. Material: durable hard iron. Size: approx. 82 *35mm. Semicircle shaped door knobs pull handles, very simple, delicate and practical. Used for cabinet, drawer, bin, drawers, wardrobe, door, etc. Each knob comes with metal screw for easy to install.