CORE FOR WASHING SPONGE ROLLER

摘要

A generally cylindrical core for washing sponge roller, comprising an axially extending internal hole and a plurality of small holes allowing the internal hole to communicate with the outer peripheral surface thereof, characterized in that the diameter of the internal hole is 10 mm or larger, the diameter of the small holes is 2.5 mm or larger, and the total of the opening sectional areas of the small holes is larger than the sectional area of the internal hole. A washing sponge roller set comprises the core and the washing sponge roller put on the core.