1.Material:aluminum 2.Top quality parts to insure high quality 3.Ultra durable, scratchproof surface. 4. ... designed quick-release levers.5. All metal locking collars, not cheap plastic parts.6. Includes universal adapter for light heads.7. OEM ... material use, meet international requested starnard.100% inspection on spare parts,like capacitor, diode, fans, resistors, flash tube and so on ...