These BioThane long lines are incredibly well made and very popular for training, tracking, scent work, and barn hunt. They are made with 520 Super Heavy Beta Biothane, which is strong enough to be used for equine products, and industrial stitching which does not degrade the strength of the leads as rivets do. The snaps are brass.

BioThane is completely waterproof and very durable. It's also non-porous so these long lines will not retain odor, and they clean easily with soap and water or a disinfectant wipe. 

We recommend these 3/8"-wide long lines for dogs under 40 lbs. and 1/2"-wide long lines for larger dogs. They are available in three lengths to suit individual training needs:

• 10 feet
• 15 feet
• 20 feet