The Hopacorpse is a simple pneumatic prop that is designed to bounce a spider or creature prop. Our customers have attached very large spiders to it and let it bounce them up and down. When tethered it can be directed to bounce in a particular direction. Included is the metal framework, pneumatic cylinder, solenoid valve and regulator. All you have to do is hook up an air supply and a power source. The air inlet on the valve is a 1/4″ push to connect fitting for tubing. If you need to hook this prop up using a standard compressor fitting, let us know, and we can swap it out for you, or you can just buy one of our adapters. The solenoid valve is 12vdc. This allows you to use a variety of sensor and controller options. If you need help picking a controller or sensor for your prop, please let us know and we can help. All our props are built using a combination of fully hardened shoulder bolts, bushings, thrust bearings, pillow block bearings, and linear bearings. Our props are built to last. We can also add any of our static props to your mechanism, just ask!