Lovely Playart Sea Raider Submarine. Automatic diving and resurfacing. The submarine is complete and working. It is lovely condition. This is the 'improved' version that has a inboard motor powered by 2 Penlite (AA) batteries. The 'old' version used one Penlite battery in a detachable 'torpedo' motor. The box is showing wear , but it has protected the toy for over 40 years. Approximately 13 inches in length.