Copper, the oldest metal known to man, was used in the building of the Tabernacle during the Exodus in the desert. Its polished surface sets off this Light of Remembrance and creates a golden glow of Warm Reflection that speaks of our collective longing for the Promised Land and our abiding love for those who have gone before us. Lamp burns for over 24 hours. Materials: Copper & Jerusalem Stone, Crystal Lamp. Each lamp comes with a starter bottle of lamp oil and two polished stones. Each lamp is individually hand crafted by the artist Yaacov ben Shifra of Studio BenShifra.