The Glow EZ Lock 51" BLACK/BEADED SILVER Deep Umbrella sports a dynamic parabolic shape with an unbeatable safe and sure EZ positive and lock system. No more open up and close down umbrella frustration or fumbling! The newly designed locking device surrounds the shaft, providing a comfortable place to slide the umbrella mechanism to open, and a generous wide button to release the shoot, painlessly. This large edition of the Deep Umbrella is especially suitable for everything from fashion to portraiture, illuminating near full lenght with smooth, nonetheless, exciting light. Beaded silver makes it easy to achieve magnificent specular highlights, brings out sharp details, and provides the most brilliant indirect lighting, along with soft shadow definition. Perfect for maximum light output, greater reach, creating spectacular contrasts. With much attention to minutia in its tough build, from resilient fabric to fiberglass frame ribs, this umbrella sets the standard for portable light control for people and subjects. As with all fine Glow products , this umbrella comes packaged in a fitted, durable fabric pouch, which protects it during transport and storage, and will not grow hard and crack like traditional, plastic umbrella casings. Qliq Qwip Umbrellas are like large to giant sized parabolic reflector. Parabolas are technically 'conic sections'. Take a perfect cone