Complete 5oz Weighting Solution: This smart hybrid pinewood weights car kit includes 4oz of rigid metal derby car weights (12pcs) for primary mass and 1oz of premium tungsten weights putty for precision tuning. It is the most cost-effective way to hit the official 5.00 oz race limit exactly. Use the derby weights to build bulk weight quickly, then use the tungsten putty to bridge the gap to perfection. Premium Tungsten Putty For Micro-Tuning: Includes 1oz of high-density moldable tungsten. Unlike rigid pinewood weights, this tungsten putty is pliable and can be torn into tiny pieces (down to 0.01g) to fine-tune your total weight. Mold it into aerodynamic shapes, fill axle holes, or smooth out body cavities to optimize your pinewood car's airflow and balance. Easy Peel-And-Stick Installation: The 4oz Iron metal derby weight set (comprising 12 segmented plates) features a strong self-adhesive backing. Simply peel and stick them to your pinewood car chassis—no glue, screws, or drilling required. The plates are electro-galvanized and spray-coated for a sleek, rust-resistant finish that looks professional on any pinewood car. Master The Physics Of Speed (COG): Winning isn't just about heavy weights; it's about placement. This pinewood weights car kit allows you to concentrate mass exactly where physics demands it. Stick the derby weights low on the chassis for stability, and mold the tungsten putty at the absolute rear to shift the Center of Gravity (COG) backward, maximizing potential energy and track speed. Lead-Free & Race Ready: Designed for standard pinewood car specifications. Both the zinc-plated metal derby car weights and the tungsten weights putty are non-toxic and lead-free, ensuring safety for young builders. The low-profile design fits easily under standard car bodies, ensuring pass-through at inspection without clearance issues. 【Low Profile Design & Strategic Placement】 Featuring an ultra-slim, low-profile design, these pinewood car weights are engineered to ensure your derby car clears the track center rail without scraping. Two pinewood car weight variants (small/large) let you optimize load: large derby car weights anchor rear traction for high energy, while small derby weights allow for balanced handling. Each features a zinc-plated core with laser-calibrated mass—no guesswork for consistent results.

• In the derby competition, precise weight control is key to victory. Our meticulously designed weight kit is engineered to help you effortlessly achieve ideal 5-ounce weight, unlocking your car's maximum potential.
• The kit contains 12 pieces of high-quality weight discs totaling 4 ounces, with two to choose from, paired with 0.5-ounce tungsten-based graphite for a dual-weighting solution. The large size weight discs allow for quick construction base weight, catering to most weight requirements
• While the tungsten-based graphite enables micrometer-level fine adjustments, ensuring your car's weight is spot-on whether it's for pre-race simulations or last-minute tweaks at the event, ready to face the challenge in optimal condition.