Never guess again! The estimated weights are the benchmark from biological data. Who doesn’t want to measure the overall length of a once in a lifetime fish. The taxidermist will certainly ask. You might be lucky enough to reach the HUGE section. The Release Rulers contrasting colors were designed to photograph for an easy to read measurement and allow for a quick release. It’s made of a durable, dimensionally stable, waterproof PVC to be used for many years to come. The ruler rolls up easily in any tackle box or boat and needs no batteries. Don’t tell a fish story about your big trophy bass- show your friends and family a Release Ruler fish story. The Release Ruler measures 2 inches by 32 inches. 100% Satisfaction.