| 摘要 |
Displaced force backing wedge with a rigid wedge shape, a rigid handle, the wedge shape having a plurality of rounded ridges extending from left to right at its top most surface. The wedge shape has a centrally located slot extending perpendicularly from the thin edge of the wedge to the center area of the wedge. The handle extends outward perpendicularly from a central portion of the thick side of the wedge. A preferred embodiment includes rounded ridges that run parallel to the front surface and start as a small radius and progress to larger radius.
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