These training bumpers are like no other bumpers available on the market. Unlike other stiff and hard canvas bumpers these are soft and ply able with the similar feel of bean bag. They are one of the heaviest floating canvas bumpers on the market coming in at over a pound so you are able to toss them far like a hard plastic bumper. When dogs hold these in their mouth it is as close to a real bird as anything out there. Another realistic feature, unlike a typical bumper (plastic or canvas), these don’t bounce up when they hit the ground. Similar to how a bird rarely bounces when they hit the ground. These are great for puppies and young dogs as well as your seasoned gun dogs.