This is an injection-plastic military vehicle model kit.
Adapted from the Hobby Boss website:
Development of the Land-wasser-schlepper (Land-Water-Tractor) started in 1936, but the first 7 vehicles were completed in July of 1940. An additional 14 were produced by March of 1941. It was designed by Rheinmetall-Borsig as an amphibious vehicle for use by engineers, but it lacked storage and loading/unloading access. To overcome this problem, special 10 and 20 ton amphibious trailers were made. It carried a 3-to-5 men crew and 20 passengers. Unfortunately it was unarmored and could not operate effectively in the combat area. The LWS saw service in Russia and North Africa.
Measurements when complete: 121mm long, 44mm wide. The kit consists of over 20 parts molded in light brown, and includes 3 clear parts.