ND Nine-Speed Rotating Neutral Density Goggles Meet this retro steampunk-style eyewear—the ND Nine-Speed Rotating Neutral Density Goggles, designed to blend fashion with practicality. With a 49mm lens, single-beam frame, and spring temples, its structure balances durability and a unique vintage aesthetic, making it a standout accessory for style lovers. Adjustable Light Reduction for All Scenarios This goggle’s core highlight is its nine-speed manual dimming function: twist the lens to adjust light transmittance smoothly, keeping your eyes protected from harsh glare in strong sunlight. Whether you’re driving, fishing, traveling, or hiking, it adapts to different light environments seamlessly—no need to switch between multiple pairs of glasses. Universal Fit & User-Friendly Design Boasting a unisex, face-shape-friendly design, it suits most wearers comfortably. The detailed dimensions (143mm frame width, 51mm lens height, 23mm nose bridge distance) ensure a snug, stable fit, while the lightweight build avoids fatigue even during long hours of wear. It’s not just a functional optical tool— it’s a fashion piece that elevates any outfit.