It features aluminum guide sections, with high precision steel connection joints, and a non-slip non-marring rubber underside. Also includes 3 freely position-able non-marring suction cups to hold the guide in place. These suction cups are a new version which is suitable for rough surfaces and has extra vertical holding ability. The sliding carriage has double ball bearings and a precision scoring wheel. You can push with two hands for a deep incision. All of the parts fit into two specially designed carrying cases which are included. Can be used to cut tile up to 1/4″ thick. For material up to 130″ long. There is an optional 20″ extension for material up to 150″ long.