Patent ID: 8469210

Claim:
A train car comprising: a main base including a floor including a first end and a second end opposite the first end, a wall extending substantially perpendicular from the floor and around a periphery of the floor, a first gap in the wall at the first end, a second gap in the wall at the second end, and a post positioned within the second gap and extending substantially perpendicular from the floor; a first connector including a post having a first end and a second end, at least a portion of the post configured to be received within the first gap, the first end of the post configured to protrude from the wall of the base, a ball secured to the first end, a first base positioned between the first end and the second end of the post, the first base configured to be received within the first gap, the first base including a first surface positioned substantially flush with an outer surface of the wall of the base, a second base secured to the second end of the post, the second base positioned inside the wall of the base; a second connector including a post having a first end and a second end, a hollow base secured to the first end, the hollow base configured to receive the post extending from the floor of the base, a receptacle secured to the second end, the receptacle configured to receive a ball from a complementary train car; and a body including an outer wall configured to receive the wall of the main base and configured to trap the first connector and the second connector in their respective positions.