This item has been discontinued. Sierra Trading Post carries it now (20 May, 2002) for a very low price ($90). You can also find it used on auction sites.
From Sierra Trading Post:
"Lightweight freaks have long believed that most of the time a tarp is as good as a tent. Only tarps don't always survive extreme conditions. Enter the Bat Ray... the perfect tarp/tent hybrid for weight-conscious
campers. Two poles joined with tensile line form frame of the tent. Tent can be shut down allowing minimal access to elements, or opened for balmier conditions. Polyurethane-coated polyester with no-see-um mesh."Backpacker.com
"The Bat Ray 4 feels more like a tent than a tarp. The entire perimeter is flush to the ground...A hoop pole at the rear of the shelter, along with a pole support in the front creates enough headroom for four people to sit and play cards. Ventilation comes from the mesh skirts along the side and the large front entrance, which is top-to-bottom mesh with a zipper down the middle. The screen doors can be rolled up and tied back for better views or enhanced ventilation in bug-free environments...there's a window at the rear that's ideal for star gazing."