mine are like 2 1/2 years old- 3 1/2 ft. don't have a scale for them so i don't know weight. but i'm pretty sure they could strangle me. after a fresh shed, they are grippier, so when they're around my neck, they unintentionally get tighter as they try to move and i've gone red in the face a few times. but since they aren't actually trying to hurt you, you can unwrap them easy enough.