If you find yourself always needing to measure things when you’re on the go, this is the perfect product for you. Available in two sizes, 16″ (40cm) or 18″ (45cm) and in three leather colours. Sizes are based on wrapping around your wrist twice. Give it extra length depending on how loosely you want to wear it. Please allow an extra 1/2 inch (1.5cm) for the stud closure.