Amazon.com: Caydo 10 x 14 Inch Wooden Screen Printing Frame with Changeable 3 Yards 1.27 Meters Silk Screen Printing Fabric for Screen Printing
SOLVED: You attach a meter stick to an oak tree, such that the top of the meter stick is 1.27 meters above the ground. Later; an acorn falls from somewhere higher up
Prince Poly Spin 3D 1.27 mm 40 Ft. 12.2 Meters Tennis String Green Poly | eBay