The Walthers Mainline 910-256 HO Scale EMD SD50/SD60 Diesel Detail Kit upgrades SD50 and SD60 locomotives with prototypical grab irons, lift rings, windshield wipers, MU hoses, and snowplow. Compatible with WalthersMainline SD50 and SD60 models, it enhances realism for 1980s and 1990s freight operations and includes installation instructions.