Chrono Bomb is a super-secret spy mission where kids use the included clamps and 27.5 ft. of string to create a simulated field to crawl through and maneuver around. At the end of this maze is the bomb, counting down tick, tick, tick! So kids will have to hurry AND be careful as they race to the end to defuse the bomb and be the hero! Play over and over again, building new courses each time or trying to best your friends time. Includes a free app for even more play options. Includes 4 standard clamps, reel clamp, sensor clamp, sensor, bomb, 10 cards (8 gear cards and 2 mission cards) plus complete instructions. Exclusively packaged inside a plastic travel case not available in stores. Requires 3 AAA batteries (not included). For ages 7+.