Our Hydro Collection is inspired by the grooves and patterns that waterways make through the landscape as seen from above. The layers of gradation in the pigment on the exterior of the bases reference topographical maps. We take queues for our palette from the rivers for which the pieces are named. Much like the rivers that inspire them, the pattern on each piece is unique.The base of each lamp is hand-cast with hydrocal plaster inside of a unique balloon shape. The interior of each piece is poured with layers of resin, impregnating the plaster with added strength and hardness. Finally, each base is hand-dyed with custom mixed pigments and finished with a unique pattern of dyed plaster protuberances. The exterior is sealed with a UV resistant acrylic coating.Our shades are made by hand using a heavyweight cotton rag paper and attached to a nickel-plated swivel fixture with a turn switch. An in-line dimmer switch on the cord provides adjustable light settings. Due to the nature of the UV sensitive materials in our lamp bases we recommend using LED lightbulbs exclusively.UL Listing is available upon request for an additional charge.