These are great for any level of nipple play. You can even use these on your pussy lips. They are great for beginners since there is an adjustable screw-like control, which makes controlling them a breeze. For the more advanced users, you can remove the adjuster.

The majority of these are metal which is nice and smooth, and has a cool feeling when first placed on the skin. Between the clamps is a nice sturdy chain. Latex covers all four ends of the clamps. Latex is a synthetic rubber which makes the metal a little softer and covers any sharp edges.

I really like the design of these. They do not look cheap at all. The metal chain that holds the two clamps together is roughly 10" in length and when the clamps are nice and tightly secured, can be tugged on quite hard without budging. The clamps themselves are spring loaded and easy to put on and adjust. These are very comfortable, well I guess that's depends on how tight you make them. The clamps themselves can be seen through most bras but if you don't want to go braless, they fit into the cup and the chain is still long enough to hang down nicely.

Metal is very easy to clean. You can use toy cleaner, diluted bleach, soap and water, or even antibacterial wipes. They are small and can be stored in a little pocket of a purse, or in a little baggie.