This rubber stamp design comes from a hand drawing of a classic Celtic design. Celtic knots symbolize infinity or eternity because they are drawn with one continuous line which never ends.
It's available in three sizes. See the second preview page for details of the stamped image size.
I personally laser engrave each stamp and mount it on an art stamp wooden backing. The wood is fine grained maple with smooth rounded edges on two sides for comfort while holding it. The image is engraved on the wood before it is adhered to the stamp. Stamps may include traces of ink from quality checking to insure your stamp prints beautifully!
Stamps are usually made to order and take 1-3 days to make and ship.