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Product Information:. Style: Straight Cup. Insulation performance: 12-24 hours. Style: sports. Function: portable, heat preservation. Material: 304 inside and 201 outside. Product quality level: first-class. Packing specification: 8x8x23cm. Color: 20oz straight cup, 20oz straight cup, 30oz skinny, 30oz straight cup. Capacity: as shown. Size Information:. Packing specification: 8x8x23cm. Packing list:. Insulation cup*1