A system for supporting and holding in place an object (for example and not by way of limitation, anchor bolts, steel plates and the like) to be embedded in concrete. A device having a shaft and a tower can be used to support the object, by inserting the shaft into an opening in the tower and rotatably locking the shaft in place at the desired height, an embed can be supported in the desired position. Concrete can be poured around the support to embed the object at the desired position within the concrete.