Herm Sprenger is the only brand to use for dog training gear. Do yourself a favor and spend the extra money. You won't be disappointed!
The toggle choke chain is especially good for dogs who have large heads, and therefore have a hard time getting into/out of properly-sized choke chains. This goes around their necks, then put the "wing" portion through the ring and clip a leash onto it. Simple as pie!
-- 不适合 3岁以下的儿童，请在成人监护下使用。