These ALM plastic blades come in a pack of 20, designed specifically to fit a range of Qualcast and Bosch models, including ALM28, ALM30, ART23LI, ART23 Accutrim, and others. Their durable plastic construction ensures efficient cutting performance while being lightweight and easy to replace, helping maintain your lawn mower’s optimal operation. Ideal for routine maintenance or replacement, these blades provide reliable, consistent results for a well-trimmed lawn.