The rubber (silicon) cases are more durable than the leather because it is very good at absorbing shock .
Personally I think otter boxes are better than phone cases. The otter box keeps your phone much safer and are more durable than your typical phone case. Phone cases are usually made out of plastic or rubber, the plastic cases break rather easily when dropped. The rubber/gel cases are a little more durable but do not compare to otter boxes.
There is a lot of information online on the cases. There are leather, plastic, silicone, rubber and all kinds of materials being used. I prefer a rubber casing with a plastic shield on top, so as it can absorb the shock from a bad fall and not crack.
In most cases it is a plastic hose usually made of unvulcanised rubber
You can purchase rubber, leather, and plastic cases for your device in a variety of colors, and in many price ranges. These cases can also protect your device from breakage in the case of a fall, or some other accident. They can be found wherever Apple products are sold, including your typical big box stores.
Leather and plastic phone cases
If you are referring to toothbrush cases then yes, most of them are made out of plastic, its not a very durable material but it is very cheap and does a very good job of protecting toothbrushes from dirt.
They may be manufactured wholly or partially of leather, plastic, or fabric, or from a combination of these materials
They may be manufactured wholly or partially of leather, plastic, or fabric, or from a combination of these materials
There are a variety of options for Blackberry cases. The average case is made of plastic, but you can also find higher quality leather cases or lower quality silicone like cases.
Mobile phone cases are made of rubber or plastic even fiber glass
Plastic is what the outside of a golf ball is made from. The inside is made completely out of rubber.
They are made of silicone unbreakable cases so that the blackberry has a chance of survival and does not shatter when you drop it. It is the same material they use of plastic surgery it is very durable.