Ultralite Pinewood Derby Car Body Only - 5 Slot BSA legal race bodies. These bodies are milled out as thin as we feel comfortable making them. Reduce weight that will dominate every race. Minimum wood weight, maximum surface area for custom weight distribution. Front end tapered so that you can actually start down the track before others. Designed for tungsten cubes. Average weight on these are around 20-21 grams Precut- We already cut the design. Low profile, reduced drag. Every .001" counts in PWD. Sanded: We have handed sanded the bodies to 220 grit prior to shipping