Dog Health Questions: What bite sleve should i get for attack dog training?

im going to be training my dog to attack on command and i don't know which sleve i should get. he is a 1 year old german shepherd. and very smart. please help. i found this site http://www.things4yourdog.com/page/1151107
but i don't know what sleve to get

Puppy and Dog Training

Recommended Answer:
Just choose 1 any of them work

Therapy Dog Training, Helping the Infirm