This book comes with all the plastic pieces, paper parts, and special pages you need to experience 25 impossible things. These objects work like magic, but there are no tricks. All this weirdness has a solid scientific basis and we tell you why — from the mathematically amazing Möbius strip (a band of paper with only one side), to cardstock acrobats with amazing balance, to a color-changing spinning top.

Toolbox jewelry is the first ever hardware jewelry kit that teaches kids how to make amazing industrial jewelry from the provided shiny nuts, star washers, fasteners with cord, satin ribbon, beads, and earring wires. Simple instructions transform these practical thingamajigs into super chic ­- and surprisingly pretty - jewelry. It's the perfect combination of functional and fabulous. Comes with 60 page book of instructions, over 200 nuts, washers and fasteners, three colors of cord, earring wires, beads, two colors of ribbon, resealable storage trays, slide-out work surface. Launch date: August 2013.

String Art was originally invented to make math concepts more accessible to kids, but it isn't just for squares (or triangles or circles) any more. With our crystal-clear, step-by-step illustrated system you only need to learn three simple techniques to make all the kids art in this book, including a fun fox, a darling dandelion, a cute cat, an awesome owl - you can even spell your name. The final results may look intricate, but we include an only-from-Klutz pin-pushing tool so even a string-art newbie can create awesome art with this classic craft. And our pin-pusher solves string art's prickliest problems by making sure that every pin goes in straight and at the same height. With instructions for 20 projects and enough materials for six, kids will be making amazing art in no time. Comes with: 60 page book, 360 feet of craft thread in 8 bright colors, 550 sturdy pins, 6 project boards, 10 decorative sheets of backing paper, 5 sheets of tracing paper, pin-pushing tool.
— In a May 2015 survey, two out of 11 retailers told TDmonthly that Klutz was their best-selling brand of activity kits.

Coloring Crush includes everything you need to make dreamy, just-add-color works of art. And, for those who can’t find the pointy end of a pencil, our introductory how-to guide includes a crash course in using colored pencils, blending and layering, color scheme inspirations and artist-approved techniques.

This set includes a 64-page instructional book with step-by-step guidance for building 10 LEGO race cars and a custom track designed for simultaneous two-car races. It comes with all 124 required bricks to construct the cars, featuring color variations and interchangeable parts for customization. The product blends STEM learning with creative play, following the same approach as Klutz’s popular LEGO Chain Reactions, LEGO Gadgets, and LEGO Gear Bots sets.

This set won the Nappa Silver Award for its clever design. Kids can build 10 different moving machines that bring their LEGO bricks to life in new ways. The kit comes with 33 LEGO pieces, 6 plastic balls, string, paper ramps, and other components to create all the projects. A detailed 80-page instruction book walks builders through each of the 10 modules with Klutz Certified step-by-step directions. With over 30 essential LEGO elements included, children ages 8 and up can explore creative engineering concepts while having fun with these interactive builds.

This set allows you to construct eight physics-driven kinetic creatures using LEGO Technic bricks and papercraft components. All required LEGO elements are included. The 64-page instructional book provides step-by-step building guidance along with STEM-focused content covering axles, cams, cranks, and engineering principles found in everyday machines. The product is identified by model number 9781338603453.

This craft kit has earned both the Parents' Choice Award and FamilyFun Toy of the Year Award for its creative charm-making experience. Kids can shape and design over 35 different wearable charms using the included supplies: nine colors of clay, a charm bracelet, shaping tools, glaze with brush applicator, jump rings, charm loops, plus a drying and display stand. The 60-page instruction book features Klutz-certified, easy-to-follow directions that guide children through each step. Designed for ages 8 and up, this set provides everything needed to create personalized clay jewelry.

This spy-themed kit allows users to assemble a dual-security lock system with both combination code and key functionality to secure personal items. The set includes electronic components for constructing either a door alarm or pressure plate to protect valuables from unauthorized access. A 32-page instruction manual provides clear guidance for these builds along with additional spy-related activities using common household materials. The kit introduces fundamental concepts of circuitry, information encoding, and decoding while supporting STEM/STEAM learning. Note that 2AA batteries are required but not included with the set.

Klutz marks its 30th anniversary with this flagship set, featuring three aerodynamically designed bean bags and a storage bag for easy organization. The set includes an 88-page instructional book with Klutz-certified step-by-step guidance. Over 3 million units have been sold worldwide. This activity is designed for children ages 8 and up.