From the Manufacturer
The Robo Battlers Bundle pack includes all four of the "Collect & Build" motorized robots in the Robo Battlers Series. Have fun building Scooter/Slasher, Hopper/Stomper, Speedy/Flash and Crawler/Ace! Each set comes with approximately 120 K'NEX parts, primarily micro rods & connectors. And the motor allows for unique and exciting mechanical movement - just like each robot's name suggests! Scooter/Slasher scoots along, Hopper/Stomper jumps, Speedy/Flash is lightning-quick on wheels, and Crawler/Ace creeps along on four legs! And that's not all - Scooter/Slasher and Hopper/Stomper combine for a bigger robot, and Speedy/Flash and Crawler/Ace do the same! Recommended for builders ages 7+. All sets require 2 "AA" batteries each, not included.
Collect and build of the KNEX Microbots that makeup the Robo Battlers Series - motorized for exciting mechanical movement! Each individual set comes with approximately 120 KNEX parts, primarily micro rods and connectors to build a motorized robot. Combine Stomper with Slasher or Ace with Flash to build an even bigger motorized robot! Recommended for builders ages 7+. Requires 2 AA batteries- not included.