ROUND GROUND PLATE - DIAMETER 55 MM (2¼'').
ROUND GROUND PLATE - DIAMETER 128 MM (5") - EQUIVALENT SURFACE 1,7 M² (18,3 FT²).
RECTANGULAR GROUND PLATE - DIMENSIONS 155X51X13 MM (6X2X½") - EQUIVALENT SURFACE 1,15 M² (12,4 FT²).
RECTANGULAR GROUND PLATE - DIMENSIONS 205X64X13 MM (8X2½X½'') - EQUIVALENT SURFACE 2 M² (21,5 FT²).
RECTANGULAR GROUND PLATE - DIMENSIONS 300X80X13 MM (12X3X½'') - EQUIVALENT SURFACE 3,45 M² (37,1 FT²).
RECTANGULAR GROUND PLACE - DIMENSIONS 455X150X13 MM (18X6X½'') - EQUIVALENT SURFACE 5,75 M² (61,9 FT²).