To provide a collar enhancing the protective power of the cervical portion of a pet, especially a medium to small pet.SOLUTION: The first band-like body 10 having a constant width, the two width changing tools 12, 13 coupled to both ends of the first band-shaped body 10, the width changing tools 12, 13 connected to the width changing tools 12, Second narrow bands 14 and 15 narrower than the first band-like body 10 and a coupling connected to the end of the second band-shaped bodies 14 and 15 on the side opposite to the width changing tools 12 and 13 And the female part 18b and the male part 18a of the female and male connecting member 18 are respectively coupled to the second band-shaped bodies 14, 15. The collar 1 has a connecting ring 16, Since the size of 17 remains unchanged, the impact on the cervical portion of the pet is alleviated since the first band-shaped body 10 in the portion corresponding to the neck is wide.BACKGROUND OF THE INVENTION【課題】特に中型から小型のペットの頸部の保護力を高めた首輪を提供する。【解決手段】一定幅の第1帯状体10と、前記第1帯状体10の両端に結合された2つの幅変更具12,13と、前記幅変更具12,13のそれぞれに結合され、前記第1帯状体10より幅の狭い第2帯状体14,15と、前記第2帯状体14,15の前記幅変更具12,13が結合されたのと反対側の端部に結合された連結環16,17を有し、前記第2帯状体14,15には、雌雄連結具18の雌部18bと雄部18aがそれぞれ結合されていることを特徴とする首輪1は、連結環16,17の大きさは従来のままであって、頸部に当たる部分の第1帯状体10が幅広であるので、ペットの頸部への衝撃は緩和される。【選択図】図1
