Specification AgeRangeDescription : Kid Brand : Pur.Tungsten BulletPoint : Made by Pinecar BulletPoint1 : Premium Quality, High Density, Heavy Tungsten Alloy Screw-on Weight Plates for Pinewood Cars are environmentally friendly & LEAD-FREE BulletPoint2 : Four 1/2 oz. Plates in Each Pack Totaling 2 oz. for Customizing A Perfect Balance & Weight Distribution in Your Pinewood Racer BulletPoint3 : Plate dimensions: Length: 1 3/8″ or 1.375″ | Width: 7/16″ or 0.4375″ | Thickness: 1/16″ or 0.0625″ BulletPoint4 : Two Pre-drilled & Chamfered Screw or Nail Holes Per Plate for Easy Mounting BulletPoint5 : Perfect Pinewood Car Underbody Weights & The Easiest Tungsten Weights to Mount for The Novice Woodworker BulletPoint6 : Give Yourself or Your Child The Best Advantage By Using Our Tungsten Weights for Your Pinewood Car Racer. BulletPoint7 : Tungsten gives you the density of solid gold at a fraction of the price! BulletPoint8 : The Official Pinewood Total Car Weight Limit Is 5 ounces, but check the rules for your local contest to be sure! BulletPoint9 : Directions: We design our Pinewood Car Plate Weights for easy mounting on the bottom of your pinewood car, but you can mount them on any flat surface. These weights have pre-drilled & chamfered holes to allow for easy fastening with screws or nails. Color : black CpsiaCautionaryStatement : no_warning_applicable EducationalObjective : Team Building Skills ItemName : Pur.Tungsten Pinewood Car Tungsten Weight Plates (4 Pack of 1/2 oz. weights total 2 oz.) Pre-drilled Screw-on Tungsten weights environmentally friendly & LEAD-FREE Easy Mounting ItemPackageDimensions_Height : 0.06 inches ItemPackageDimensions_Length : 4 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : hobby-pinewood-derby-supplies Manufacturer : Pur.Tungsten ManufacturerMaximumAge : 110 ManufacturerMinimumAge : 24 Material : Tungsten ModelName : balloon NumberOfItems : 4 OccasionType : Birthday OperationMode : Manual PartNumber : TDPWPlate4pack ProductDescription : Find the perfect balance & mass for your pinewood car with our (4 Pack of 1/2 oz. weights total 2 oz.) Tungsten Pinewood Car Plate Weights. The four plates allow for custom, precision weight distribution to achieve maximum speed.... Whether in the Cub Scouts, Webelos, Boy Scouts, Girl Scouts, Earth Scouts, Adventure Guides, Pathfinders, Navigators, Pioneers, Royal Rangers, Alert Cadets, Columbian Squires, Trail Life, DeMolay, or any other forms of Scouting, we all love the Pinewood Race!!!! The Derby gives us the chance to spend genuine quality time with our kids while also teaching them important lessons about safely handling tools, the physics of motion, the effects of friction and drag, the difference in density of materials, and the importance of design & execution.... The other lessons we ALL learn are good sportsmanship, fair competition, teamwork, grace in the face of defeat, and if we are skilled and have a bit of luck, the thrill of victory!!!! The acceleration due to gravity is a constant. The more mass, the greater the force acting to accelerate your racer. This force is competing against the forces exerted by aerodynamic drag and friction, so you want as much mass as possible to increase acceleration force.... Official Rules limit Pinewood Cars to a maximum weight of 5 ounces, but check the rules for your local contest to be sure.... Most Pinewood Cars weigh between 1.5 oz & 3.5 oz (depending on design) without any added weights, so a Pinewood Car may need up to 3.5 oz of extra weight.... The heavier your car is, the faster it’ll be, but the location of that weight makes a difference.... The best placement for center of gravity is 1/4" to 1" in front of the rear axle. Go too far forward and you lose potential energy, too far back & your car will lift its front end..... Tungsten is best for this because it’s so dense, allowing for precise placement & tuning.... Give yourself or your child the best advantage by using our Tungsten Weights for your Pinewood Car racer.... ProductSiteLaunchDate : 2023-03-09T01:15:54.482Z SubjectCharacter : Derby SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TargetAudienceKeyword : Unisex Adult TargetGender : unisex Theme : Vehicle UnitCount : 1 UnspscCode : 49201600