Starrett KTS510-50ME-N ABS Plastic Yellow Case Closed Reel Steel Long Tape， English/Metric Graduation Style， 50' (15m) Length， 0.375" (15mm) Width， 0.125" Graduation Interval<img src="http://ecx.images-amazon.com/images/I/51wlDb-jV3L.jpg" noproxy>