Brunton Dash Mount Compass MOUNTABLE - Fits into manufacturer-ready recesses to flush-mount on kayaks or boat bulkheads for a smooth factory-installed look. EASY READOUT - Reliable reading and heading with direct reading disc. ACCURACY - 5 degree graduations. BACK BEARING - The Reciprocal Bearing makes reading your back bearing fast and reliable. Direct reading disc Bulkhead mount; Reciprocal bearing 5 degree graduations Overall dimensions: 4''x3''x3'' Weight: 8.3 oz.