• The BUBBA Fish Rulers come in 3 different sizes to make sure you can quickly and easily measure fish lengths, coming in 18, 28 and 38 lengths. The 90-degree upward fish stop makes a nice stop for the fishs nose to land, while the high contrast ruler featuring measurements makes it a breeze to see the overall fish length. The Rulers feature anodized aluminum construction to withstand the elements and can be mounted to the boat or tethered for quick use.