Product Description Detailed Specs Downloads Reviews/Questions Product Description ZEBRA EVM, DARTTAG SNAP-ON MOUNTING RING, UWT-1101-A-0XXX; 20-PACK KIT Detailed Specs null null null null null null null null null null MFG Part Number UM-400-01 Product Type Accessory Downloads Reviews/Questions The Zebra UM-400-01 is also known as ZEB -UM40001 or UM40001