K&rsquo;NEX K-FORCE &ndash; 30-Dart Pack and Target &ndash; 51 Pieces &ndash;  Ages 8+ Engineering Educational Toy (Amazon Exclusive) CONTINUOUS BLASTING ACTION  Never stop firing with the KNEX K-FORCE 30 Dart Pack Plus Target! This dart refill allows blasters to fire as many darts as they can! It is designed to work with the entire KNEX K-FORCE Build and Blast line. 30-DART PACK  Get into continuous blasting action! This set provides you with 30 darts of ammunition, great for target practice or for battle! The package also contains KNEX pieces to create a buildable target. This toy is recommended for kids ages eight and above. BUILDABLE TARGET  This dart pack also includes KNEX rods and connectors that you can use to create a buildable target. Practice spot-on blasting before playing as an action star, dont let the enemy strike first. 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.