Product Description The Sine collection is architectural in conception and form, with the sine symbol (~) deftly incorporated as its distinct accent. Forged in solid brass, the collection includes towel bars, toilet tissue holders, hooks, toiletry shelves, shower rods and hotel shelves, in addition to mirrors and sconce lighting. From the Manufacturer The Sine collection is architectural in conception and form, with the sine symbol (~) deftly incorporated as its distinct accent. Forged in solid brass, the collection includes towel bars, toilet tissue holders, hooks, toiletry shelves, shower rods and hotel shelves, in addition to mirrors and sconce lighting.