CBBPET Prong Collar for Dogs, Adjustable Dog Choke Pinch Training Collar with Comfort Rubber Tips for Small Medium Large Dogs (L/3.5mm (Neck: 18"--20'' Weight:70 lbs), Camo Army Green)

Well made and easy on/off. Extra links provided and can be removed or added. Rubber tips provided that can be put on spikes. Good value

My dog has always been terrible on a leash and I could never get him to stop pulling, but I put this on him and he automatically stopped. I am so suprised. If you have a dog that pulls on the leash I recommend!