Edmunds-The Handi Clamp needlework scroll frame line features a PVC clamp system to keep fabric in place and holds tight. Line features 3/4" scroll rods. All wood receives a fine sanding and two coats of finish-no raw wood anywhere. Extender bars are oak, scroll rods are ramin wood (less warping) and knobs are maple. Works without tape, tacks, sewing or split dowels. Complete set contains two each 6" and 8" spreaders, 8", 14" and 20" scroll rods, eight knobs and clamps.