an apparatus for securing a pair of elongated cooperative interlocking tapes to the corresponding edges of a pair of fabric pieces , for guiding the edge portions of the fabric pieces to an overlapping vertically aligned position , and for pulling and compressing the overlapping portions into interlocking engagement . the apparatus is particularly adaptable for stitching cooperative tapes of &# 34 ; velcro &# 34 ; to the opposed edges of fabric pieces , such as the margins of an opening in an edge panel in a sofa cushion cover . the overlapping edges with their opposed tapes are compressed into interlocking relationship so that the edges may be retained closed when the fabric pieces are subsequently stitched to other fabric pieces to complete a sofa cushion cover .