• Universal adapter for drawing precise circles with all common writing and drafting instruments up to 11 mm Ø
• Easy to use with all compasses with interchangeable lead part
• Shank Ø 4 mm

Art. no. 557 02

• Spares set which contains all spares required for STAEDTLER Professional, Comfort and Basic compasses

Art. no. 557 ET

• Box with 4 leads
• Degree HB

Art. no. 556 E4-HB