主权项 |
1. An apparatus, comprising:
a first substantially rectangular pad having a first end, a second end and a middle portion formed between the first end and the second end; a second substantially rectangular pad having a first end, a second end and a middle portion formed between the first end and the second end,
wherein the middle portion of the second pad is configured with a first strip of fibers extending from the first end to the second end, andwherein the middle portion of the second pad second pad is configured with a second strip of fibers extending from the first end to the second end; and a third substantially rectangular pad disposed between the first pad and the second pad. |