Spiders are similar to top rings or shade risers in that they are used to reinforce and spread the parts of a lamp or fixture that provide shading. Spiders, however, are generally used to fortify either plastic or glass cylinder-style shades. Though somewhat rare on older lamps, they are often found on modern, minimalist-styled light fixtures.
We currently offer a brass plated steel spider that is designed for 4” diameter shades or cylinders. It is intended for use with only brass washers.