The conical piece on the side there is the bowl. Keep one finger on the hole on the end as yu hit it from the other hole. Let go of the hole on the end to clear the hit!
What have you got, flower? Oil? Flower should not fall through if its not broken up super fine. Just goto your local headshop and pick up a glass screen, or a steel screen. It will prevent any from going through.
Do not use steel or any metal screen. Metal screens get too hot and can crack the bowl. Sent from my moto e5 play using Grasscity Forum mobile app