ITEM NAME:Clearance Plate Button Reed Presser Foot Clearance Hump Jumper Sewing MachiS Gw.This plate help you to sew big button for overcoat parka all-season coat. Husqvarna Viking Clearance Plate (BUTTON-REED) Hump Jumper # 413105601. The Clearance Plate creates a thread shank when sewing buttons in place.