K'NEX K-FORCE &ndash; K-25X RotoShot Blaster Building Set &ndash; 214 Pieces &ndash; Ages 8+ Engineering Education Toy 5-SHOT ACTION  Design, build, and customize your very own KNEX K-FORCE Build and Blast K-25X toy blaster with a five-shot rotating action! This building set consists of 214 durable plastic pieces that connect together to form a striking blaster. The motorized parts allow kids to make five straight shots without reloading, thanks to the revolving dart chamber. FIRES UP TO 75 FEET  KNEX K-FORCE Build and Blast K-25X RotoShot Blaster Building Set includes KNEX rods and connectors, plus special parts such as a RotoChamber, quick-fit grip, and pre-load ring in a cool blue color. The five foam darts in this set can be shot up to 75 feet! Plus, K-FORCE blasters are designed with durability in mind  special rod-locks have been created to ensure your blaster stays together in the heat of battle! DOWNLOADABLE INSTRUCTIONS  The KNEX K-FORCE Build and Blast K-25X RotoShot Blaster Building Set has downloadable, step-by-step building instructions for five unique blasters and targets. Each STEAM toy kids can make is designed for a more exciting playtime. 5 ALTERNATE MODELS  Build and customize five blasters and targets using the 214 pieces of the KNEX K-FORCE Build and Blast K-25X RotoShot Blaster Building Set. This set is also compatible with the entire K-Force Build and Blast line, so you can create a variety of bigger blaster models. STEAMagination  This is the connection of STEAM (science, technology, engineering, arts & math) with a childs natural curiosity and creativity, and it powers the fun of each and every KNEX building set. Building with KNEX puts children on a path to a fundamental understanding of STEAM / STEM subjects. CUSTOMIZABLE BLASTERS  K-FORCE Build and Blast is the only line of dart blasters that you design, build and fully customize! Specialized parts like quick fit grips and dart launching mechanisms combine with the K'NEX building system to create any blaster that you can imagine. Packaging may vary. COMMITMENT TO QUALITY  KNEX rods and connectors are responsibly made in America at a landfill-free, zero-waste green manufacturing facility in Hatfield, Pennsylvania. We test to the strictest quality and safety standards, ensuring that your child has a successful, trouble-free building experience. PARTS GUARANTEE  Broken part? Missing part? If you need a replacement for any reason, just give us a call! Well get you what you need so that your child can get back to building as soon as possible.