Base plate is 16 x 18 inches, center post is 18 in tall, arm is 7 in long.
StringARM:A heavy duty string line holder designed for durability on the job site. If needed, the center post accommodates a ¾ diameter grade stake for holding the StringARM base in place on open graded aggregate (permeable), there are also (3) 3/8 diameter holes for landscape spikes to secure it on dense graded aggregate base. StringARM allows for quick string height adjustment without tools. Perfect for use with screeding and leveling equipment.
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