Fastener and article equipped with the fastener

Problem: To provide a fastener that facilitates attachment of a string and makes it unlikely for the attached string to come off. Solution: The fastener according to one aspect of the present invention is a fastener for fastening a string-like body to an article, and includes a slit opening part for inserting the string-like body, and a string-like body holding part which communicates with the slit opening part and holds the string-like body inserted from the slit opening part. The string-like body holding part extends in the left and right directions from the slit opening part, a surface of the string-like body holding part facing the slit opening part is smooth, and a projecting part is provided at a position adjacent to the slit opening part on the surface of the string-like body holding part. 问题：为了提供有利于绳附接以及使所附接的绳不太可能脱落的紧固件。解决方案：根据本发明的个方面的紧固件为用于将绳状主体紧固到制品的紧固件，并且该紧固件包括用于插入绳状主体的狭缝开口部以及与狭缝开口部连通并保持从狭缝开口部插入的绳状主体的绳状主体保持部。绳状主体保持部从狭缝开口部向左右方向延伸，绳状主体保持部的面向狭缝开口部的表面是平滑的，并且在绳状主体保持部的表面上的与狭缝开口部相邻的位置处设置有突出部。