A biopsy marker delivery device are described. The delivery device can include a relatively flexible hollow tube, a pushing member such as a push rod disposed for sliding with the tube, and at least one marker disposed in the tube. A marker blocking member is disposed distal of the distal most marker, and is disposed at least partially within the hollow tube to assist in preventing premature deployment of a marker from the hollow tube. A portion of the blocking member may disposed in the hollow tube, and another portion of the member may be operatively associated with a portion of the package such that when the marker delivery device is removed from the package, the member is removed from the marker delivery device.