| 摘要 |
MULTI-DENSITY MASSAGE BALL A massage ball (10) having a plurality of adjacent foam layers including at least one first density foam layer (14), at least one second density foam layer (16) and at least one third density foam layer (18), and a glue layer (22) between each adjacent foam layer thereby adhering together the plurality of foam layers. A density of the first density foam layer (14) is different from a density of the second density foam layer (16) which is different from a density of the third density foam layer (18). The massage ball (10) may also include a solid core (12) in the center thereof |
