Build a customizable blaster with 10-shot, motorized, rapid fire! The motorized rapid fire chamber allows you to fire 10 darts as fast as you can pull the trigger! Each dart fires up to 75-feet. Load 10 darts at a time with the included dart clip. Set includes K'NEX rods and connectors plus special parts to create customized blasters: 1 motorized rapid fire blaster chamber, 1 10-dart clip, 10x foam darts, and 1 quick fit grip. Build and rebuild by downloading instructions for 6 additional blasters and targets. Most models can be built one at a time. Compatible with the entire K-Force Build and Blast line. Ages 8 and up. Requires 2x "AA" batteries, not included.