*GD GRIP ULTRA is protected by PATENT issued by the US government(PATENT NO. US 8,133,158 B2) and CHINA government(PATENT NO. CN101808698B).

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*GD GRIP ULTRA is protected by PATENT issued by the US government(PATENT NO. US 8,133,158 B2) and CHINA government(PATENT NO. CN101808698B).

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