description wall jack this economical and portable wall jack is constructed of heavy duty, malleable iron castings. the wall jack is used for raising walls, beams, decks or can be used to tighten and true flooring. california proposition 65 warning. specifications acme tools brand name qual craft acme tools part number 2601q assembled weight (lbs) 5.0 california proposition 65 warning required yes globaltradeitemnumber (gtin) 00012643026019 package weight 6 package weight (lbs) 6 scaffolding type pump jack components upc 012643026019