The concept of dae is to smoothly harmonize with the design of furniture or fittings, while maintaining a distinct presence as a caster. Rather than a “ball bearing configuration” comprising an axle and bearing, which is the basic structure of a conventional caster, it is characterized by a “sliding configuration” that does not use an axle or bearing. The dae caster structure comprises a SUS shell, an aluminum roller, and an internal ring made of special resin, enablingaring-shaped wheel with a central hole-a hublesscaster that possesses sufficient strength and solidity, yet seems to float.