Inart Quick Release Micrometer Compass - 4 Pieces

These compasses, with quick opening adjustment, are designed to perform geometric shapes very accurately. They have an easy and effective system to lock the rods, avoiding skidding when using. The graphite tip can be replaced by an adapter, which allows you to attach a pen or pencil. They feature a nickel-plated finish. The 4-piece set contains: 1 compass (length: 170mm and diameter / opening: 290mm with 570mm extension), 1 mine tube, 1 stretching accessory and 1 adapter for pencil, mechanical pencil or pen.