The LAB500-12-2R Tin-Plated Aluminum Compression Lug, two-hole, has color-coded barrels marked with Panduit and specified competitor die index numbers for proper crimp die selection. An inspection window aids to visually assure full conductor insertion, and the tin-plate material helps to inhibit corrosion. UL Listed and CSA Certified to 35 KV and temperature rated to 90°C.