Shock absorbing device

A shock-absorbing device for use with a racket frame having a plurality of string holes, the shock-absorbing device comprising:

• at least one or more outer tubular member located on an outer periphery of a racket frame and positioned between two adjacent string holes of the plurality of string holes of the racket;
• each outer tubular member of the at least one or more outer tubular member has an adhering part, an outer tubular wall, two adhering surfaces, and an inner tubular member;
• the adhering part is located on a bottom of the outer tubular member and adhered to the outer periphery of the racket frame;
• the outer tubular wall is a curved surface located on an outer periphery of the outer tubular member and is connected to opposing ends of the adhering part;
• the two adhering surfaces define front and rear surfaces of the outer tubular member respectively and are flat surfaces connected to the adhering part and the outer tubular wall;
• and
• the inner tubular member extends through the outer tubular member along an axial direction and has an inner tubular wall;
• wherein, when the at least one or more outer tubular member is located on the outer periphery of the racket frame, a string is inserted through a first string hole of the two adjacent string holes of the plurality of string holes of the racket, through the at least one or more outer tubular member, and through a second string hole of the two adjacent string holes of the plurality of string holes of the racket, the at least one or more outer tubular member is spaced apart from the two adjacent string holes of the plurality of string holes of the racket;
• wherein, when the at least one or more outer tubular member is located on an outer periphery of the racket frame, the string is prohibited from being in a same horizontal plane, thereby providing interferences at different timings and bearing shock waves of a counter shock force are generated when a ball is struck by the string, and effects of absorbing shock and damping are achieved.