Perfect Measure Tool: A precise gauge measurement tool designed for crabs, featuring multiple measurement marks for different species. High-Quality: Made of high-density, thick plastic material with clear digital identification and measurement markings for easy and convenient use. Bold Color: The bright red color makes it easy to spot and helps prevent loss among your other equipment. Convenient: Equipped with a small hole on the top right corner for attaching a lanyard, making it easy to carry. Wide Range of Uses: Accurately measures the legal size of many species of crabs, clams, and shrimps—ideal for your next trip. Product size: 8 x 5.5 x 0.1 inches.