Tool - Concrete Slump Cone
https://smile.amazon.com/gp/product/B00C0OGZAS/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1 $61.28
https://smile.amazon.com/gp/product/B00C0OGZAS/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1 $61.28
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