This 4 lb weight for strength training micro workouts looks like an elegant decorative accessory carved from stone, but is made with silky-smooth silicone over iron. Swirl is alluring to pick up, will not scratch table surfaces, and is easy to wipe clean. Swirl weights are produced in small batches and are hand-finished for a luxurious feel. Inspired by the blue marble found in Greece, Ocean Marble has varying tones of pale blue, ivory and a touch of sand. Like natural stone, no two pieces are colored identically, elevating the look. Patented.