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Petrogrips holds
c.1990s |
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1993 Petrogrips advertisement
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River rocks with a flattened edge. Drilled hole for the bolt, but also drilled holes for single finger holds. Some of the finger holes are drilled 1 1/2" deep.
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1994 Petrogrips advertisement
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Holds Review - Petrogrips, R&I magazine #62 July/Aug 1994 page 105 
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Sandstone hold with a fiberglass backing.
- c.early 1990s
- c.early 1990s
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