A device (10) for mounting on an installed tennis net as a target (30). The device (10) employs a target member (30) defining a silhouette having a size generally on the order of a conventional tennis ball. A mounting member (40) adapted to be removably secured to a conventional tennis net headband (20) by engagement of just the headband serves as a mounting for the target member (30). The target member (30) is connected to the mounting member (40) so that the target member (30) is supported slightly above a headband (20) to which the mounting member (40) is secured.
