We make a number of specialty tools featuring these hybrid spikes. Unlike our sharp-tipped spiked rollers, used to remove trapped bubbles from freshly applied floor coatings, these roller covers are actually used as application tools. They are often used to force and compress aggregate materials into a variety of overlayments, or create a special surface finish. We can custom make a variety of tools using the “blunt” and “stub” spikes. Because of the hollow aluminum core, these rollers can be weighted.