Estes B4-4 Model Rocket Engines (3pk) - EST1602 GMA30085 The body is prepainted and

The body is prepainted and also features clear windows

a speed-oriented clear polycarbonate body paired with the easy to assemble MS chassis in a new purple-themed color scheme

Wheel 2pcs)

or more speed and unlimited vertical performance with a 4S battery

The RidgeLine half cage low-profile body combines performance and realism

Estes B4-4 Model Rocket Engines (3pk) - EST1602 GMA30085 The body is prepainted andThe Estes B4 4 is single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 3. 5 ounces, including the engine. Each package includes 3 engines, 4 starters, and 4 plugs.