I live in a one-bedroom apartment and I use these weight for my daily workout . they be unobtrusive enough to keep within the living room without disrupt the floor plan . I have never feel insecure about the stability or safety of these weight . the pin that hold the weight together be very sturdy and do not move during exercise . the pin be also easy to place provide the weight be on level ground and you be at eye level with the weight . the unique shape of the dumbbell have be a plus because it have allow I to do exercise like weighted pushup and overhead triceps extension . the only negative about these weight be that they do make `` clinking '' noise when use for most exercise , make they difficult to use early morning when someone be sleep nearby . this should not be any issue in any other circumstance .