I get my stuff from stillwater kennel supply and bulldog supply company. The only thing is with both places you have to get a special order for the sizes if you don't own an APBT my stuff had to be made custom since my dog is way bigger than their sizes. I also got two leads from Stillwater and they are super heavy duty as well, not tiny cheap clips those are hardcore buckles that withstand the craziest pulling. This one I got from Stillwater, it is super thick and the hardware is made to last a lifetime. The green collar I ordered from Bulldog supply company and the walking harness I ordered in custom size from Brown Dog Design Harness. When I go on walks the harness allows Bernie to pull at max force while being super comfy.