9pcs/set , tin writing box packing . including :one eraser ,one sharpener,one 3.5' pencil   ,one 180 protractor,one 45 and 60 set square ,one ruler ,two  metal compass .  we have many kinds of math set .OEM is ok ,any color and design is ok . we will give you our best price and good quality . meanwhile we responsible for any piece we do for you . waiting for your coming !