Features: Quality material composition: This derby car kit is meticulously built from quality materials. The block is fashioned from pine wood, while the wheels and accessories are made from sturdy plastic, fit for creating your wood derby cars. Good gift option: Show your loved ones how much you care with this special and thoughtful gift. Ideal for gifting to families or friends, this wood derby car kit provides an opportunity to build, customize, and race. Share the joy and excitement of racing derby car kits with your loved ones. Specifications: Material: wood, plastic, metal Color: wood color, black, gray Size: Wood block: about 7.1 inches/ 18 cm in length. 1.77 inches/ 4.5 cm in width Wheels diameter: about 1.18 inches/ 3 cm Axle: about 1.04 inches/ 2.65 cm in length Package includes: 1 Set derby car kit Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Small parts included, please keep them away from little to avoid swallowing risk.