10m long tape measures tree diameters up to 3.2m. 10mm wide white enamelled steel tape. Double sided - diameter on one side (cm/mm grads), circumference on the other (cm/mm graduations). Claw hook at the end of tape for positive bark penetration. Tape start (zero) is approximately 12cm into the tape (ie, doesn’t start at the claw) - "A" start. Easy winding drum. Case size - 90mm diameter. Model 349D/10m. Made in Germany.