Knuckle-Headz Head Poppin™ Racers are fueled by a powerful pull-back motor, Knuckle-Headz simulates medieval jousting with a few modern twists. Six exciting new collectible characters face off in a battle to see which can keep its head. Define the battlefield, aim your vehicle at your opponents, pull back for maximum momentum, and let them zoom toward each other. Direct hits result in the loser’s head popping off about 12 inches. Great gifts for the little ones and stocking sGreat gifts for the little ones and stocking stuffers. Knuckle Headz Pop-Up Racer Car Toy, Friction-Powered Pull Back Race Car, Head Popping Fun Gift for Kids, Boys, Girls, Ages 3+ START YOUR ENGINES: Bring high-speed fun to playtime! Each colorful vehicle packs a punch with a friction-powered motor and precision-tuned pop-off mechanism; just push his head down, pull back, release, and watch it go; one clean crash hit, and it’s head flies 12 inches through the air RELOAD AND RUMBLE AGAIN: Reset in seconds for non-stop mayhem GIFT for KIDS and COLLECTORS: Knuckle-Headz pop-up racer is built for adventure; boy, girl, collector, or just a kid at heart will the dig the action; 6 toy cars to collect FAST LANES WITH NO SCREENS: Keep children off devices and locked into hands-on fun at full throttle; these crash-ready cars deliver screen-free excitement with every wild spin and epic collision