description wyco magflo 4' screed bar for single power unit the wyco magflo 4 ft. screed bar for portable concrete screed machines has an enclosed design prevents warping and torquing damage. made of lightweight magnesium for optimal portability. enclosed design virtually eliminates warping or torquing. no brackets or adjustable torsion rods means no crevices for concrete to gather in, making clean up a breeze. 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 the wyco magflo screed bar features a 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 single power-head specifications acme tools brand name wyco acme tools part number ws621400 assembled weight (lbs) 8 color/finish silver country of origin united states globaltradeitemnumber (gtin) 00423062000045 length (in) 48 material magnesium package contents 4 ft. screed bar package depth 48 package height 6 package weight 8 upc 423062000045