About this 3D model

You can print it in one time. I put arborescent supports only for the lid. you don't need support for the biggest piece. I designed the object to put inside two ball seeds of basic shape and dimension. The lid is screwable. I printed it in PLA +, perhaps it's better in ABS or PETG but mine stayed outside 1 year (temperature about -5 to 40 degrees) and the screw alway works.