Yunt Recovery Pet Cone E-Collar for Dogs and Cats,with Breathable Soft Edge, Plastic Snap Closure Neck S: 18cm-20cm / 7.09"-7.87"; Neck M: 19cm-26cm / 7.48"-10.24"; Neck L: 25cm-29cm /9.84"-11.42"; Neck XL: 28cm-34cm /11.02"-13.39"; Pets rest more easily as the soft breathable mesh fabric edge lets them lay their head comfortably in any position; Safe and humane method of preventing animals from aggravating a healing wound or injury; Helps Overcome Lick-Bite, Itch-Scratch Cycle. Ends Self-Inflicted Wound Aggravation or Mutilation.