Profile: Wall Sleeves & More, Inc. produces crossing seals and insulators. Our products include pipeline & prover spheres, scraper cuts & discs, sphere detectors, sphere pickers, hot applied tapes and primers. Our Model PX casing insulators are made from solid polyethylene and provide high impact strength & low co-efficient of friction. Our pipe linx are used to make a watertight seal between a pipe and a wall hole.