Check the listing for details. Anets/ Anetsberger/Middleby Marshall SDR-21P Dough docker Perforator. Condition: Used. Listed at 1949.00 USD. This item is the one of the major components needed to convert the SDR-21 Pizza Dough Roller, with an added docker. Why a DOUGH DOCKER? Middleby Marshall exclusive and patented Dough Docker (SDR-21P) ends the "blistering" problems found in many operations today. The Dough Docker virtually eliminates the need to "pop" blisters in the dough while baking. BENEFIT: No loss of oven heat due to opening of the oven doors; no labor loss and insures crispier crusts with a "homemade" appearance with 100% perforation...a must for conveyor ovens. Research has made this perforator completely compatible for "thick-n-thin" pizza doughs. The Middleby Marshall SDR-21P eliminates hand docking and the use of extra utensils. No need for additional counter space that requires an extra operator for the manual perforation operation. Speeds up your operation, too! And, most important, the size of the perforated hole has been designed to eliminate leakage of sauce and other condiments thus assuring complete product consistency and more profits for you.Shipping to continental US only. Items in photo is what you're purchasing. Thank you!