Weems & Plath Nickel Compass Chart Weight The compass chart weight is a working liquid-filled compass that is ideal for holding down charts on the boat or for use as an elegant paperweight on your desk. Constructed of a high-quality nickel-plated forged brass ring, this desk compass is lacquered so it will not tarnish or show fingerprints and has a felt bottom that protects the surface and prevents sliding. The nickel-plated compass chart weight is packaged in a black, velvet-lined presentation gift box. Dimensions: 3" L x 3" W x 0.6" H Weight: 0.8 lb.