They use a mix of fabrics and structural materials: polyester and polyester blends (including polyester/cotton cobweb), polypropylene, plush, styrofoam, metal or wire framing, and various plastic components.
Options include blacklight-reactive webs, spider props with glowing eyes, and at least one inflatable that features a rotating multi-color LED light plus glowing eyes for an illuminated display.
Kits commonly include hanging hardware and ground stakes, along with web material and smaller spiders. Inflatables add a built-in blower and stability accessories such as wind ropes, stakes and waterbags to secure them outdoors.
Many spider props have wired or adjustable legs that can be bent or shaped for hanging or placement. Reviewers often note bendable legs make positioning and display much easier.
They can be hung or displayed from ceilings, in doorways and windows, on porches or trees. Some tent-like webs stretch from roofline to ground, and inflatables use a support column to create a floating lawn display.