All bandanas go over the collar and the bowties velcro around the collar your pet has.
*Recommended Size per weight*
Large - 50 pounds and up
Medium - 30 to 45 pounds
Small - 9 to 25 pounds
Ocean Animals Bandana or Bowtie
Machine Washable on low, recommend putting the bandana in a garment bag to keep from getting caught in the washer/dryer.