Perfect for use on sailboats, yachts, and other marine vessels, especially during challenging weather conditions or when navigating tricky water Ensures safe sailing with Heel Angles Clinometer, designs for precise of your boats tilt from 45 to +45degrees Featuring steel balls in a bright yellow tube, this clinometer smooth, accurate readings and shatterproof designs craft from durability The Clinometer is hand assembled and paint, ensuring and attention to detail for every adventure Suitable for sailors, marine enthusiasts, and boats owners who need reliability heel angles measurements during their voyages, Manufacturer: jklymm