What You Get: 5x 1/4' to 3/8' reducer bushing screws; 5x 1/4' to 3/8' male to male screws; 5x 1/4' to 1/4' male to male screws; 5x 1/4' to 3/8' camera spigot screws. Material: Made of aluminium alloy, light weight and solid; others adapters are made of stainless steel, solid and durable; color is silvery The tripod adapter screw kit: can be attached to a wide range of different photography The camera converter screw kit: can meet the most of your camera devices and other accessories. Save your money: full of variety adapter set, no need buy other camera adapter with these adapter set