Alumahangers and Alumahooks for decorating Alumawood & Duralum patios., Alumahangers and Alumahooks are designed to hang decorations from Alumawood, Duralum and most Aluminum patio covers. Made of powder coated steel and Durable plastic they designed for outdoor use. Great for String lights, rope lights, wind Chimes, bird feeders, party decorations, holiday decorations, outdoor patios.