Yunt Elizabeth Protective Pet Collar Wound Healing Cone Recovery E-Collar for Small Medium Large Dog Cat Neck S: 13-15cm / 5.11"-5.90"; Neck M: 17-19cm / 6.69"-7.48"; Neck L: 22-24cm /8.66"-9.45"; Neck XL: 26-29cm /10.23"-11.42"; 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.