it looks something like this.  Found in on google.  

They can either be made of wood,plastic or metal (which is heavier) . They are also called traditional because you are still using ink pads for re-inking unlike the mechanical or self-inking ones. You use it just like how you would use a normal stamp. You can also make your own or personalise stamps using this link (if you don’t want to do any dirty work) they’ve got some cool traditional stamps imo.  You might want to check them out. Ecom Rubber Stamps Australia