From the Manufacturer...
The Spider is a mid-range disc that works for hyzer, straight and turnover throws. Throw it with the nose up and the Spider will turn left, with the nose down it will turn right. The Spider is a low speed predictable disc that makes a great approach disc. Excellent for all skill levels and players who prefer a smaller diameter disc.
Weight Range: Star: 170-175g, Champion: 150-175g, DX: 150-175g
Best Choice for: All-around disc, Placement shots, Short approaches
Available Plastics: Star, Champion, DX