SOLD as EACH PIECE!Seat Hook Extruded Flexible Polyethylene Material and we bend them in 1/2 to ship!Each Piece is 1-1/8″ Wide X 48″ Long / Can be cut to sizeClips on to Edge of metal or Plastic up to 1/4″ ThickYou can use two Seat Hooks to clip together to form a seam!!Sewing with J-Clips -Plastic J-Clips can be used in many ways, particularly for fabric and upholstery applications. Because the clips are manufactured out of a flexible material thats preferred in the seating and upholstery industries,fabric issewn directly to the Seat Hook,which keeps the material tight against the seat frame.If youd like to create a seam, simply sew Seat Hook onto both sides of the fabric.Not only is the flexible material designed to install easily,but it reduces the flexibility of the product post-installation.