A training system includes apparel and balls that fasten to the apparel. The apparel includes patches or strips of hook/loop fastener material that couples to strips of the hook/loop fastener material on the balls. The balls are removed during training by an opponent. The balls are placed on the apparel to emphasize training to that region.

The present invention relates to a hollowed ball with an erratic movement for pets formed by a single piece, preferably made from an elastic material that allows the erratic movement during a rotation or rebound displacement due to its interior design. The form and dimensions and dimensions of the ball allows the storage of food in its interior, introducing and dosing such food through openings or hollows placed in the external part of the ball. The ball is structurally formed in its interior by at least two cylindrical sections with continuing radially arched thickness with a sequential projection of horizontally cylindrical truncated steps.

A basketball may include a single integrally formed unitary body having a first layer comprising an inner lattice, second layer having an outer lattice and surface strips, and radial beams interconnecting the first layer and the second layer.

A massage kit having a foam roller, a massage device, and a removable cover. The massage device includes a flat bottom surface with a curved top surface. Protrusions extend from the massage device and are configured to interact with the removable cover to hold the cover in place on the top surface or the bottom surface of the massage device. The roller includes an opening sized and dimensioned to receive the massage device.

A puck includes a main body having a first portion and a second portion securely attached to form a generally cylindrical shape with an internal cavity. One or more energy absorbing components are positioned within the internal cavity. A weight component is positioned adjacent to the one or more energy absorbing components within the internal cavity. The weight component is sized to move in a vertical direction and deform the one or more energy absorbing components within the internal cavity in response to movement of the puck.

A tennis ball may include a spherical hollow core having an inner surface including material shift lines and a textile outer layer over and about the core.

A tennis ball comprises a hollow elastic circumferential core defining a primary outer surface pattern, and a textile outer layer extending over and about the core.

The invention relates to the method of producing toy balls for pets, including: manufacturing distorted sphere balls with an opening in the distorted area using injection molding; sealing the opening of the distorted sphere balls to form uni-body sphere-shaped balls. The material used in the production of these toys can be rubber, thermoplastic elastomers, or thermoplastic rubber. This method allows to manufacture toy balls with no detached parts in the case of broken joints when the balls are chewed or torn apart by the pets. Thus, the invention can help to keep the pets from endangering themselves by swallowing detached parts of pet toy balls.

In the process of making a hollow product, especially a deformable toy ball, two halves made from on elastomeric material, a thermoplastic material, rubber, a blend of rubbers, or a thermoplastic elastomer are formed by injection molding with mating edges that engage with each other when the halves are assembled to form the product. The edge of one of the two halves is advantageously formed with a recess centered in the edge, in which a flange formed on the edge of the other of the two halves engages to provide a form-fitting connection between the two halves. The opposing edges are then bonded with each other by fusion or melting or by an adhesive applied to at least one of the edges prior to assembling the halves together. A deformable ball produced by the process is also described.

The utility model discloses a multilayer composite high-elastic environmentally-friendly ball structure which comprises a base layer, a first coating layer, a second coating layer, a third coating layer and a fourth coating layer, wherein both the base layer and the first coating layer are formed by splicing a number of pieces into a hollow spherical structure, and a contact surface of two adjacent spliced pieces is a stepped surface in a Z shape or a concave-convex fitting surface in a U shape. The utility model have the advantages of simple manufacturing process, novel design, high stability, high reliability, high elasticity and long service life.