Thank you for viewing! This is a popular drop-in toy that children love♫ ⭐︎ There are 20 drop-in pieces. Two PET bottle caps are glued together, and rice is inside so they make a shaking sound. The surface is protected with clear tape, the sides are secured with cellophane tape, and then wrapped with colored vinyl tape. Also, the size of the drop-in pieces may vary slightly depending on the size of the cap. ⭐︎ Each drop-in piece is handmade, but there may be slight misalignments, distortions, wrinkles, dust, or stains. (The parts are also handmade.) Thank you for your understanding. ⭐︎ The back is origami with a check pattern, with a mark attached. ⭐︎ The case is made of a soft silicone material. The cut edges are reinforced with clear tape from above. Please check the photos. Animals laminated on the lids are attached with double-sided tape. There may be air bubbles, wrinkles, dust, etc., but please understand m(._.)m ⭐︎ Since children may put them in their mouths, please be careful of accidental ingestion, etc., and always have a guardian supervise. ⭐︎ During play, the tape may peel off or dust may accumulate, so please wipe them with a wet wipe or reinforce them with tape, etc. Thank you for your cooperation. Everything is handmade, so thank you for your understanding and support ⑅︎◡̈︎* 5