Weems &amp; Plath Marine Navigation 3-Arm Protractor<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Length: 21 in (53.34 cm) Width: 6 in (15.24 cm) Height: 0.11 in (0.28 cm) </span></li><li><span class="a-list-item"> Weight: 0.3 lb (0.28 cm) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31WyP30%2B5HL.jpg" noproxy>