Corner Crack Repair Kit - RCF-CNR Repair Kit For Foundation, Wall, Basement, Pool, Concrete & Crack Repair carbon fiber Made in US Effective for foundation repair, wall repair, basement repair, pool repair, concrete & crack repair Strongest wall repair system available - Works on block and poured concrete foundations The corner repair kits are great to reinforce the corner of the structure The patented system is the strongest system on the market because it ties to the foundation base and the house framing With the corner kit, it distributes the pressure horizontally to correct the damage and prevent any future damage