Key features

• •【Compatible Models】Compatible with Kobalt 40V max string trimmer models: KST 120X (Item:#651246), KST 120X-06 (Item:#506886),KST 2040-06 (Item:#1520463) String Trimmer.Replacement line models:29473 (Item:#506892),KDLA 3040-03 (Item:#4357213).Be sure to choose the correct replacement accessories for your lawn mower model to ensure proper installation and use.
• •【New Upgrade】We've upgraded our KST 120x-06 trimmer line to 0.12", significantly enhancing its durability and wear resistance compared to the traditional KST 120x-06 spool line, which has a diameter of 0.065". This improvement allows it to effectively withstand wear and tear while trimming lawns. When paired with our KST 120x-06 trimmer blades head, it can greatly save you time and costs.
• •【More Efficient】KST 120x thicker 36-pack pre-wound lines, ideal for trimming tough weeds and edges that regular blades and spools can't handle. you don't have to worry about high temperature wire breakage due to excessive friction.
• •【Quickload】The KST 120x trimmer replacement line/blades adopts a new locking system design, which is easy to install/replace and safe to use. During the high-speed rotation of the line, it can be firmly locked and not easy to fall off.
• •【Package Includes】Pre-cut bold line * 36 pack，Screw * 6 pack，Wrench * 1.If you have any installation or model problems, you can contact us, we will give you a satisfactory answer within 24 hours.