K&rsquo;NEX K-FORCE Build and Blast &ndash; Dual Cross Building Set &ndash; 368 Pieces &ndash; Ages 8+ &ndash; Engineering Education Toy 7 Foam Darts|2 Blaster Chambers|3 Skull Dart Holders|2 Quick Fit Grips|2 Preload Rings|^Downloadable Instructions for 5 custom Alternate blasters and buildable targets|Fires up to 75 feet!^Downloadable Instructions for 5 custom Alternate blasters and buildable targets|Fires up to 75 feet!. Durable Product OVER 360 ASSORTED PIECES  The KNEX K-FORCE Build and Blast Dual Cross Building Set consists of 368 assorted parts and pieces made of durable plastic. These include rods and connectors that can be attached to one another in different ways to build customizable blasters, battle gear, and targets. 6 ALTERNATE MODELS  Build different blasters and target models using this dual cross building set. It comes with 2 blaster chambers, 3 skull dart holders, 2 quick fit grips, 2 preload rings, and 7 foam darts to create a variety of battle gear, including the dual cross blaster. This set is also compatible with the entire K-FORCE Build and Blast line. BLASTS UP TO 75 FEET  Play as an agent, or an archer and strike the targets using 6 different blasters that can fire up to 75 feet! Let your children enjoy the long-range striking power and see how far their foam darts will blast. EASY TO USE  This building set comes with an easy-to-follow instruction manual to guide builders through their creation of the dual cross model. Downloadable instructions are also available to create 5 alternate blasters and targets. 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. 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.