This product is either discontinued or we cannot get that from suppliers.
Satechi Magnetic Charging Dock ST-TCECM, Usb-c Mini Extension Cable, Gender Female/ Male, Cable length 0.127 m, Output voltage 5 V.
Designed to be used with Satechi's USB-C Magnetic Charging Dock for Apple Watch, the Type-C Extension Charging Cable makes it convenient to recharge your Apple Watch wherever you go.