The balls do not stink, have original golf ball size and have a trajectory like the right, just plain not as far and slower. So exactly right for practice. Preforming the balls do so far. By this color are very good in green grass visible. But beware: With full swing these things come on the 120 meters. For a smaller garden that's nothing. On our GrĂ¼nanger but you can play well and learns, no matter how familiar with some neighbors at the ball Search, ;-).