• Made of ABS material, high strength, good toughness, excellent wear resistance
• Protect your spool and line, and let your lawn trimmer work safely
• Convenient to change, easy to install in a few seconds 

Specification:

• Spool cap:
• Product size: 68*28mm
• Material: ABS
• Spring:
• Material: metal

Compatible with:

• Black & Decker ST4500
• Black & Decker ST5000
• Black & Decker ST1000
• Black & Decker ST3000
• Black & Decker ST4000
• Black & Decker ST4050
• Black & Decker GE600
• Black & Decker ST200
• Black & Decker ST300
• Black & Decker ST400
• Black & Decker CST800
• Black & Decker ST6800