This super strong cribbing collar is constructed of quality bridle leather to help reduce horse cribbing behavior. Heavy steel roller buckle for easy size adjustment. Additional holes can be punched to fit smaller horses. 1 5/8" wide, Adjusts 36 1/2" - 40" to fit most horses. Not guaranteed to stop a horse?s cribbing habit. Consult an equine professional or veterinarian for additional guidance.