It depends on the size of the horse.
The halter and lead rope are a horse owners staple. It is used to lead or tie or any time you handle your horse on the ground. The best is a nylon halter because of it's strength and durablity but never turn a horse out or even in a stall wearing a nylon halter. If you have a horse that hates to be caught and you need to keep a halter on him use a leather or breakaway halter instead. If the horse snags the halter on something the leather will snap and the horse won't be injured. I cringe every time I see a pastured horse wearing a nylon halter.
halter traing is ground work, and teaching a young horse to lead on a halter.
Fly mask usually match up with halter and bride sizes: Arabian can be defined as cob halter or bridle, Horse can be defined as regular or horse sized halter or bridle and Extra large which can be defined as warm blood large horse halter or bride. Many people prefer the cashel fly masks as the Velcro strap is cut a bit longer and it is more adjustable.
Yes.
The D shaped, metal ring on the side of a horse's halter.
The most famous Quarterhorse halter horse is probably "Impressive"
For halter breaking: Halter, Lead rope, Fence post, Lasso rope, Stall and a Cattle squeeze.....
No, you should not. The horse can get caught of something in the pasture or pen, and also if the halter is too tight it can rub bare spots on the horses face, and if left on too long and too tight it the skin can start to grow over the halter. If the horse is hard too catch, you need to practice catching the horse so it wouldn't be a problem, however the halter should not be kept on the horse loose on pasture.
Training a horse to lead when he has a halter on.
Well, if you are going to any tack shop, ask the owner. A basic horse, needs a medium to large halter. small ponies can use foal/yearling halters. if you have a Draft(large breed) then they need the biggest one you can find.
To lead a horse you would use a halter and lead rope. The lead rope attaches to the halter.
That depends on what "loose" means... If it is loose in the pasture just take the halter and walk up to the horse or let them walk up to you and put on the halter...