A printed ring with a flat paddle that sits across the gutter of an open book. Your thumb goes through the ring, the paddle holds both pages down, and the other hand is free — for a coffee, a bus rail, or a cat that has decided this is the moment.
Three ring sizes, all the same price. It works on paperbacks and hardbacks alike, and it is happiest with a book you can hold in one hand to begin with — a doorstopper is still a doorstopper.
Printed one at a time on a Bambu machine, in whatever color you pick from what’s actually on our shelf. Layer lines are visible up close, which is the point — this is a printed object, not an injection-molded one.
Care: PLA softens in heat. Keep it out of a parked car and off a sunny windowsill. Wipe with a dry cloth.