Interchangeable window sets for the HoopTech Slim Line 1 chassis. Each set snaps into the chassis to give you a different sewing shape and size — round, square, rectangular or hat-side. Round/square sets are 3 pieces; hat-side sets are 2 pieces.
Machine compatibility: For use with the HoopTech Slim Line 1 chassis (sold separately).
Vendor: HoopTech