When it comes to training, its good to have some variations of tools in your bag. The 3/8" Biothane Lead is perfect for when you need something on a smaller scale to either combat leash awareness or working on offleash training, but still having the ability to control a situation precisely and effectively when it counts. Clear communication with your dog is KEY. This lead is super light weight and thin, but strong and flexible. This Biothane is maintenance free, is easy to clean, and has a smooth feel. Only comes in 4'. (Let us know in the comments if you would like a custom size or you want it without a handle.)