LEGO Technic 42028 Bulldozer 2-in-1 model: rebuilds into a Trench Digger Features a massive blade, wide moving tracks, lifting blade and ripper and a detailed engine with moving pistons Push heavy loads with the massive blade! Operate the super-powerful ripper! Maneuver over rugged terrain with the wide caterpillar tracks! Bulldozer measures over 5" high, 11" long and 6" wide ; Trench Digger measures over 4" high, 11" long and 5" wide