Heavy Duty!
Wow! These are much higher quality than I expected for the price. The hooks are a double loop which makes them more sturdy and without a sharp point. All of the bungees are very heavy duty and there are enough of them to put some in the utility room, some in my car and some in my girlfriends car (never know when you're going to need a bungee -- almost as versatile as duct tape). I am very impressed!

variety
There are several different useful sizes in this array. They have come in very handy for me. The large I use to wrap up the vacuum hose for the swimming pool. The ten inch are being used for tying down saddle bags on a homemade bracket for a dirt bike. The uses are limitless.