CHANGE BLADE LESS OFTEN - Tired of constantly replacing dull blades? These blades are designed to stay sharp for weeks, so you change blades less often. VALUE - Get 30 cutting blades for your mower, ready to install on your Worx model. The pack also contains 30 screws for easy assembly. AWESOME COMPATIBILITY - Measuring 36mm x 18mm x 1mm, and weighing 3 grams each, these replacement blades are designed specifically to replace worn out blades on your Worx. DURABLE - Need a reliable and durable blade for your trimmer? These stainless steel blades are manufactured in compliance with EN 13130-1:2004 and EN 10088 33 quality standards. READY TO USE - The transparent and resealable packaging allows you to easily see your blades and screws and protects them from dust, dirt and moisture.