Material: Lid: AS resin; Body: Polypropylene; Butter cutter; Butter knife: Stainless steel Imported Butter Knife (Approx.): 5.0 inches (129 mm) Made in Japan Note: If the butter is hard, the cutter may deform, so please cut the butter back to room temperature The butter cutter and butter knife can be stored in the main unit Weight: Approximately 7.5 oz (210 Size: Butter case: Approx. 4.2 x 7.5 x 1.7 inches (107 x 190 x 43 Includes: Butter case, butter cutter, butter knife Material: Lid: AS resin, Body: Polypropylene, Butter Cutter, Butter Knife: Stainless steel Includes a sparking butter knife