This is the Malish 786716NP 16" MIGHTY-LOK Pad Driver w/molded riser & NP-9200 Clutch Plate. BEST SELLER ? The molded polymer pad face has hundreds of individual hooks that grip into the threads of a floor pad and hold it securely while operating. The pad driver block includes a built-in riser and a shower feed system allowing it to be used with solution dispensing machines.