Abstract: An exercise device for has a rigid body defining a chamber, at least one first fluid mass disposed to move within the chamber in response to movement of the rigid body during exercise, thereby increasing the effective mass of the device by dynamic movement of the fluid mass during rhythmic exercise, one or more handles for gripping of the device during exercise, and a set of one or more weight adjusting elements that can be removably attached in order to adjust the static base weight of the exercise device. Exercise devices may be constructed for use of one hand or two hands.

Abstract: A balance training apparatus for a roller transportation device having a series of in-line wheels positioned beneath the user's foot. The training apparatus has a U-shaped wheel well attached to the tandem roller skate for positioning a training wheel adjacent the roller wheels for rotation about an axis parallel with the axis of the roller wheel rotation and along a parallel, nonintersecting line of travel to the roller wheels when the roller wheels engage a travel surface at an acute angle.

Abstract: A sport toy for tossing and catching a ball has a frame defining an open, ball-receiving region, a webbing attached to the frame and spanning the ball-receiving region and a handle connected to the frame. The frame has a front member and a rear member. The front member has a throat wall, a pair of opposed side walls diverging from the throat wall and an end wall spaced from the throat wall and extending between the pair of side walls. The webbing, formed of a resiliently deformable material, has a peripheral rim that is secured between the frame members.

Abstract: Articles for a game of selective hitting and catching includes a mitt consisting of a rigid rear disk, a flexible front catching layer, an intermediate layer of cushioning material between the rigid disk and flexible front catching layer, a ring extending circumferentially about a peripheral edge of the rigid rear disk, and an adjustable strap on a rear surface of disk adapted for attachment of the mitt upon a person's hand. A cover is removably attachable upon the mitt and provides a rigid front hitting surface, the cover having a rim sized for snap fit engagement upon the ring. The mitt retains a ball on contact of the ball with the catching surface by engagement of complementary hook-and-loop elements on the respective catching surface and the ball surface.

Abstract: A safety lawn dart for use in lawn games has an elongated shaft, a cushioned, shock-absorbing head and a plurality of feathers or fins mounted for imparting rotational motion during flight. The shaft defines an axis, and one end of the shaft provides a hand grip. The cushioned head is mounted at the other end of the shaft, and has a hub and a wall creating a chamber cushioned to absorb the forces of impact of the dart with a target. The wall has a lower surface disposed to engage a target surface, and may have outwardly extending protrusions. The feathers or fins may be mounted on a sleeve which in turn is mounted for axial and/or rotational movement relative to the shaft.