Blade 2105300125A, 20 inch length, width 2 1/4 inches, thickness 0.125 inch, center hole 1 inch x 3/4 inch. Please check your blade center hole pattern before your order. Compatibility - Replacement for Hyper Tough Blades 2105300125A, Stens standard blade 355-101 - Compatible with Hyper Tough mower models MNA152505, MNA152701, MNA152516 Quality and performance - Made from durable steel and heat-treated for strength, resistant to bending or breaking under normal usage - Ensures a clean cut and longer blade life - Sharp-edged blades cut grass cleanly and move through grass more efficiently Aerodynamic design - Designed for improved mowing efficiency and better control of grass clippings - Reduces the amount of post-project cleaning - Optimized design helps reduce mower operating noise for a more comfortable experience Use scenarios - Routine maintenance on a 20 inch deck Hyper Tough mower to restore cutting performance on typical residential lawns - Replacement during seasonal service for Hyper Tough models MNA152505, MNA152701, or MNA152516 to maintain clean cuts - Mowing in yards with mixed grass and light weeds, where sharp edge and heat-treated steel enhance cut quality and reduce clogging while keeping noise lower