This is a stethoscope. It's a reliable quality product for general medical use. Weight: Approximately 78g Total Length: Approximately 770mm Materials: Chestpiece/Aluminum, Diaphragm/Epoxy glass resin, Y-tube/Vinyl chloride, Eartubes/Brass, Earpieces/PVC resin ☆Made in Japan☆ [General Medical Device] Medical Device Notification Number: 12B3X0003900003 It can be used for various measurements, doctor role-playing, playing house, talking to babies, cosplay, pets, nursing supplies, construction supplies, and more. Of course, you can buy it immediately. ★Recently, we have received many inquiries asking if this product can reliably hear only the fetal heartbeat. We will answer this question. ● We were able to verify the fetal heartbeat of a baby around 9 months of pregnancy. <About Shipping Date> Basically, purchases and payments completed by 8:00 PM on the same day will be shipped the same night. Purchases and payments completed between midnight and morning will be shipped the following night. Purchases and payments completed by 8:00 AM on Saturday will be shipped on Saturday. Purchases and payments completed between 8:00 AM Saturday and 10:00 PM Sunday will be shipped on Sunday night. Yu-Yu Mercari Delivery Simple packaging, recycled packaging Shipped via anonymous delivery. We do not offer discounts on single items. We will ignore your desired price. For bulk purchases of 2-4 items, the shipping cost will be higher. We will only consider shipping costs for bulk purchases of 5 or more items.