Tracy likes to transport the dogs with a collar and tag along with a sturdy slip leash.   This is the safest way to hand off a dog during a busy event.    This transport option comes with a collar and a sturdy matching slip leash. 
 
Reflective Neoprene Dog Collar: 
XS: 5/8"*12"
S:3/4"*15.7" 
M:1"*19.7"
L:1"*23.6"