3/4" Spiked Shoes Flexible spikes let you work on the self-leveling compound, waterproofing, epoxies, sealers and pool plaster with ease of movement. Flexible spiked shoes have 13 firmly attached 3/4" steel spikes cover the bottom of the shoe. Two adjustable nylon straps securely hold the spiked shoe to boot. In Stock. Self Leveling Concrete Tools