Allflex Integra Hog Male FDXLW Matched Pair Set Layout 37-5, SKU: FDXOTP982LW-Y/GIHM-COLOR-SET37-5. The ear tag is a printed tag 2 1/4" wide x 1 5/8" high, with the last 5 digits of EID printed on visual tag as management code. The electronic id tag is FDXLW. The electronic id number is printed on both the visual tag and the electronic ID tag. The last 5 digits are printed as the management code.