On Amazon where you can now get this
Kitsch Satin Heatless Curling Set in Charcoal for just $12.68 (regularly $18).

Use this curling set to create beautiful, voluminous curls without adding heat damage. Made with silky smooth satin for the easiest overnight heatless curls. Just wrap your damp hair around the curling rod and secure it with the included scrunchies. Next, allow your hair to air dry or wear the set overnight while you sleep and wake up to gorgeous no-heat curls. Just a quick tousle and you’re out the door!
Kitsch无热卷发套装是一款创新的卷发工具,专为追求健康、不伤发的发型造型而设计。这是一款现代、实用的无热卷发解决方案,既保护头发健康,又能轻松获得理想发型。