Janome MB4 Lettering Hoop Holder Unit. Janome MB4 Lettering Hoop Holder UnitEasily change out your lettering hoops without screws. This hoop holder unit is made for the Mb-4 and holds all lettering hoops securely.*Pictured with the J4 No. 8 hoop (not included)This accessory works with the following models: MB-4S MB-7... - Janome MB4 Lettering Hoop Holder Unit. |