Abstract: A bouncy hoop for playing that includes a circular external soft shell that envelopes a circular springy internal spine. The internal spine comprises a first flat ring and a second flat ring that are connected together by a vertical intermediate wall. The width of the first flat ring is greater than the width of the second flat ring by at least twenty percent, and the width of the second flat ring is twice or greater than the width of the vertical wall. The first flat ring is closer to the outer edge of the external shell than the second flat ring. The circular springy internal spine may be made of one piece and may includes glass fiber reinforced plastic.

Abstract: An accessory for sports training and leisure activity that includes a springy internal spine and a soft external shell that can also be springy. The springy internal spine is hoop-shaped and is made of a springy, rigid material. The soft external shell is also hoop-shaped, is made of a soft material, and envelops the springy internal spine. The combination of the internal spine and external shell gives the accessory uniqueness. The springy internal spine imparts a bouncy character to the accessory, and the soft external shell provides the user with a pleasant grip and protects the user from injury. The springy internal spine can be located close to the inner side of the soft external shell. The soft external shell of the accessory can have circumferential cut-outs. The accessory is also equipped with center of gravity modification means, a sensor, a command unit, indication means, illumination means.