Cal-Flor KI75155 Laminate and Engineered Flooring Installation Kit with Tapping Block, Pull Bar and Spacers Pull bar and tapping block are built tough to withstand countless floor installations Heavy duty tapered pull bar, designed to be used on laminate and engineered flooring 8 mm reusable, wedge-shaped, stepped expansion spacers Solid heavy duty tapping block, not hollow, non-breakable Kit includes: galvanized steel pull bar; solid notched tapping block; 20  8 mm expansion spacers