This reusable anchor is designed for use in cured concrete with a compression strength of 3000 psi. Can be used either vertically or overhead and has a 400 lbs maximum working capacity. The 496 has a 5,000 lb capacity. The 497 has a 10,000 lb capacity for single user only unless used with the SkyWalker Horizontal Lifeline System for up to 2 people. Complies with OSHA and ANSI Standards.