CRL's TAPER-LOC® 'X' Taper Sets for 21.52 and 25.52 mm laminated tempered glass are made up of four Tapers and one L-Setting Block. Engineering grade polymer tapers expand in thickness when compressed together with the Cat. No. TLK12 Installation/Removal Tool, mechanically locking the glass panel into the base shoe.

The TAPER-LOC® L-Setting Block spaces the glass away from the base shoe's vertical wall on one side and at the bottom edge, and is attached to either the inside of the base shoe's "drop-side" wall, or to the glass panel prior to installing into the base shoe with an adhesive tape strip that is pre-installed. It also serves to insulate the glass panels from damage during insertion into the base shoe and, at the same time, center the glass in the pocket.