
I bought this to replace a pair of compasses I bought at an art supply store which had a plastic screw for attaching a pencil. It was more expensive than this and was very inaccurate due to the plastic screws. There is no plastic in this compass and I am very happy with the quality. Strong, easy to tighten screws. Opens to approximately 22 cm or 8.66 inches. Very strong metal screws ensure high precision. I highly recommend this product. See photo.

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