The white polymer used to produce the markers will not be harmed in a temperature range of -50 to +150 degrees F.  It is completely weather-resistant.  Neither snow, rain, ice or frost will affect it...nor will fertilizers or chemicals.  The dome of the UNIVERSAL MARKER is flexible.  When the very edge of the marker is lower than the cutting height of the grass, no special precaution is necessary, but we suggest you read the installation instructions.

THE
 FLEXIBLE
MOW-OVER/VISIBLE
CENTER FAIRWAY
YARDAGE MARKERS
WITH REPLACEABLE TOPS ARE
GUARANTEED
ONE YEAR AGAINST CRACKING
(but you will probably get 5-10 years)
CAUSED BY ULTRAVIOLET SUN RAYS
AND LOSS OF FUNCTIONAL RESILIENCY.