The Ecobra range of compasses is a comprehensive range of quality compasses. The different models can include extension bars and attachments. The Rotring Convex Geometry Compass Set is another quality, precise Compass with an extension Bar and Spare Needle. We also sell the Rotring Compass Attachment which can fit on most Compasses to enable you to use your compass with your Technical Drawing Pen.
We also have the standard Safety Compass by Jakar along with their Cutting Compass and Spare Blades.