Weighs 1. 3-pound. This bearing guide roller is designed to use with hayward tigershark robotic cleaner models rc9956cc, rc9950gr, rc9990A, RC9990, RC9965CC, RC9950A, RC9950 and also compatible with Hayward TigerShark QC and Plus robotic cleaner models RC9990GR, RC9955GR. Bearing guide roller replacement. Weighs 1. 3-pound.