Diameter/Girth Tapes - Forestry & Landscaping Tools from Gustharts UK
Using a DBH Tape to Measure Tree Diameter at Breast Height - YouTube
Perfect Pi Diameter Circumference Tape Measure - Imperial and Metric Tape Measure 1/2-inch by 12ft / 3.5m - Use for Measuring Cylindrical Objects - (Pipe Tape, Tree Tape) Model DCT120 : Amazon.co.uk:
Tape Measure Natural Ribbon 15mm x 5m | Hobbycraft
York Survey Supply Centre - 20m/5m Diameter Tape
5m Tape Measure - Quidos
Meterex Diaflex Diameter Tape Measure with Flexible Steel Blade and Plastic Case, Dual Reading in CM