PROBLEM TO BE SOLVED: To provide a headgear capable of smoothly performing an operation on a primate without applying excessive stress to the primate. A headgear 1 for covering a head of a primate, wherein an opening through which the head of the primate can penetrate and an opening area of the opening through which the head of the primate can penetrate can be adjusted. And a slide member 4 which is a safety headgear. [Selection diagram] Figure 1【課題】霊長類動物に過分なストレスをかけることなく、スムーズに霊長類動物に対して施術をすることができるヘッドギアを提供する。【解決手段】霊長類動物の頭部を覆うヘッドギア１であって、前記霊長類動物の頭部が貫通可能な開口と、霊長類動物の頭部が貫通可能な前記開口の開口面積を調節可能なスライド部材４と、を備える、セーフティヘッドギアである。【選択図】図１
