The picture is pretty self-explanatory here. Put your wet clothes on the rack (it has a position for 2 pairs of shoes also) and let them dry. Prevent your dryer from having to do as much work or any work at all. This is made of steel and it is painted white.
From the website:
"Simple and effective, the Value Charger can charge four AA or AAA rechargeable batteries at a time. A foldable wall plug makes for easy portability and handy storage. And the Value Charger can charge other brands’ rechargeable AA or AAA NiMH batteries as well. It includes StayCharged Rechargeables with Duralock Power Preserve™ Technology, now guaranteed for three years in storage."