description wyco magflo 16' screed bar for double power unit the wyco magflo 16 ft. double power unit screed bar for portable concrete screed machines has an enclosed design prevents warping and torquing damage. made of lightweight magnesium for optimal portability. 6 in. base allows the screed king to float in any slump of concrete and our unique curl edge helps roll the excess concrete back to the rakers and allows the board to float or ride on forms. the magnesium float boards provide the lightest material in the industry and will not react with concrete like aluminum screed bars. california proposition 65 warning. features 6 in. base which allows the screed king to float in any slump of concrete curl edges roll excess concrete back to the user cleaning is quick and easy due to the adjustable torsion rods and no brackets enclosed design prevents warping and torquing made of light magnesium no tools are required for board removal for use with a double power unit specifications acme tools brand name wyco acme tools part number ws621440 assembled weight (lbs) 31 color/finish silver country of origin united states globaltradeitemnumber (gtin) 00423062000120 material magnesium package contents 16 ft. screed bar package depth 192 package height 6 package weight 31 upc 423062000120