| 摘要 |
A plastic body impregnated with a friction-reducing additive especially formed for insertion into a helmet and attachment to the inside of the horizontal faceguard bars of the helmet. A specially formed insert presents an anatomically curved rear surface which reduces the ability of an opposing player to grasp the facemask. This grasp-releasing function is further facilitated by the friction-reducing additive which reduces the surface coefficient of friction on the anatomically curved rear surface of the insert.
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