Product Size (W x D x H): Approx. 8.3 x 1.2 x 13.4 inches (21 x 3 x 34 cm); Bead Bag: Approx. 6.3 x 0.6 x 8.3 inches (16 Main Materials/Materials: Body: 100% Polyester, Bead Bag: 95% Polyester, 5% Cotton. Beads: Silica gel Can be heated in the microwave and used repeatedly. Back: Zipper Closure Microwave safe with bead bags only (500W: about 1 minute, 20 seconds, 600W: about 1 minute) Estimated Usage Time: Approx. 20 minutes. *The design of the entire pattern may vary slightly depending on the product (C) 2024 Sanrio Co., Ltd.