How much does this cost to the nearest dollar?

Fotga DP500 IIS 15mm Rod Rail Rig with Cheese Baseplate and Lens Support 15mm Rod Clamp for Follow Focus Matte Box Film Photography Canon Nikon Sony Pentax Fujifilm Olympus DSLR Cameras
Introduction There are 2 1/4 -20 screw holes on the railblock of it. The top camera mount baseplate is with a quick-release railblock,easily to mount and detach from the 15mm rods. Instead of a little 1/4 screw bolt,this baseplate adopts a big thumb screw,which enable you to mount your camera on the baseplate much easier and quicker. There is also a 1/4 screw hole by the size.You can connect a device with 1/4 screw on it,such as magic arm,etc.

Price is $91.00
Price: $90.99