Japanese lunch boxs: 1.Mataril:ABS 2.We can provide SGS matarilcertificate if you need. 3.It is a three-part:LID(1pcs)+box(1pcs)+Tray(1pcs) 4.There are 6-part ofInternal box 5.You can put different food example sushi,Sauce,fish,etc. 6.Box is divided into two parts,The red box in the black box,and they can be separated,so it is very easy to clean. 7.If you are interested in it,Please contact me. 8.OEM is welcome.