Previous Product Adjustment Knob Lock System Upgrade Kit$21.95 Adjustment Knob Lock System Upgrade Kit quantity — OR — Add to cart SKU: 70-WJDADJL Category: Wonder Junior Parts Tag: Wonder Junior Description Description Adjustment Knob Lock System Upgrade Kit for the Wonder Junior hand grain mill. Related products Quick View Out of Stock Quick View Wonder Junior PartsStainless Steel Burr Heads (OUT-OF-STOCK) $69.95 Read more Quick View Quick View Wonder Junior PartsWonder Jr Repair Kit (OUT-OF-STOCK ) $31.95 Add to cart Quick View Quick View Wonder Junior Motorizing OptionsMounting Board for Motorized Mill (for Wonder Junior) $38.95 Add to cart