The PULSAR Pulley Accessory kit is designed to aid the opening and closing of the dome shutter, and to minimise the risk of the shutter slipping and causing damage. Allows the shutter to be part opened to any position if required. Easy to fit, the kit comes complete with pulley wheel, nuts, bolts and washers, together with 4 metres of Nylon rope. It can be fitted whilst your dome is being installed or retro-fitted afterwards. The pulley fits to the flange at the top of your dome aperture, through the existing bolt hole, and the Nylon cord fits to the front and rear of the sliding shutter. Supplied with detailed fitting instructions.