Glazelock Shims Inc. has been a manufacturer of structural plastic shims since 1997. The company was invented by a window installer and aims to develop shims that reduce material and labor costs, while being secure and stable. During the show, the company will promote its pre-scored shims that are said to be easier to break off than traditional wood shims. The shims eliminate the need to cut or to score and are an inexpensive option for companies, according to the company.