We pack 50 pieces diameter Metal 12mm Domed Waterproof IP65 momentary pushbutton switches into 1 foam box to protect them .We supply 50 pieces rubber rings and 1 piece guarantee card with these switches.Then we packed this foam box into a plastic bag,it will packed into a small box with 3 layers corrugated .Finally ,we packed 20 boxes into a 5 layers corrugated export carton.