Collins Wash Away Wonder Tape 1/4 x 10 yd COLC7 1/4" x 10 yards. A Double-sided transparent tape that disappears after washing. unlike other tapes, you can sew through it wighout fear of gumming up your needle. Its uses are endless in home sewing or crafting. Tape is water soluble and should be stored in a cool, dry place when not in use. Use to position zippers, appliqus and pockets. Handy for matching plaids.