Package contains 20 blank inserts for the gardener who wants to personalize their garden. For best results use a UV permanent marker. Markers sold separately. The oval shaped identification insert is made of a flexible material that can be instantly pressed into place. It cannot be accidentally dislodged. Inserts can be changed by pushing the pointed end of another marker, or like object, through the back hole until the insert is dislodged. Made In the U.S.A. Satisfaction Guaranteed