1 1/8 white/green proprietary dual durometer ball on 13 rattan shaft. Rev 2.0 now includes an extended dual durometer core.
GH Green - George Hamilton Green Signature Series Xylophone Mallets Rev 2.0
Horizontal geophone - GH45 series - M.A.E. S.r.l.
M.A.E - TRG14ZF
3-D Geophone: GFZ
Multi Geophone String 20Dx for marsh, Geophone String - Geophysical Equipment Geophone Supplier
M.A.E. S.r.l.: Detección - Medida - DirectIndustry
Geófono horizontal - GH10GS - M.A.E. S.r.l.
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Geófono horizontal - GH10GS - M.A.E. S.r.l.