This product, created with a 3D printer, is designed to relieve stress by stimulating the senses of sight, hearing, and touch (ASMR). It's a mysterious toy where two different parts overlap and pass through each other. Please experience the enchanting twisting sensation. I believe it's more durable and larger than those from 100-yen shops. I plan to ship via Yu-Packet Post, but this may change due to thickness. The approximate width is 2.5cm and the height is about 4.5cm.