MWFFTKSE 1pc 19285/6204/62/22/63/22/6705 Hybrid Ceramic Bearing ABEC-1 Industry Motor Spindle Si3N4 Ball Bearings 3NC HC Accessories(6204RS 20x47x14mm)

STEM Kits for Kids Age 8-10, STEM Toys for Boys 8-13, Remote Control Model Car Building Kits, Wood 3D Puzzles 8-12, Science Crafts Projects, Gifts for 8 9 10 11 12 13 14 Year Old Teen Boys Girls

Opmind 5 in 1 STEM RC Robot Building Kit, APP & Remote Control Samurai/Ninja Blocks 419 Pcs, Erector Set RC Toy for Kids, DIY Build Science Educational Gift for Age 6 7 8 9 10 11 12+ Boys & Girls

STEM Science Kits for Kids Ages 8-12 8-10, Wood Building Crafts Kits for Boys 6-8, STEM Toys for Ages 8-13 6 7 8 9 10 11 Year Old Gifts, Kids Science Engineering Experiment Projects, 3D wooden Puzzles

COWVTUJ ARMPAL Mechanical Claw Model Kit 3D Wooden ClawBot Puzzle for Adults and Teens Self-Assembly Robot Arm Building Kits to Build Laser-Cut Wooden Puzzle Mechanical Toy Realistic Robot Toy Gifts

FM Radio Kit, ICSTATION Soldering Projects Radio with LED Flashing Lights DIY Radio Kit LCD1602 Display FM 87-108MHz Soldering Practice Kit for Back to School Solder Education Creative Present

Thames & Kosmos Architectural Engineering | Science Experiment & Model Building Kit | Build 26 Models of Structures & Structural Elements | A Parents' Choice Gold Award Winner 14.6 Inches

NATIONAL GEOGRAPHIC Da Vinci Model Kit - Catapult Kit for Kids, 3D Puzzle Building Toy for Boys and Girls, Wood Building Kit for Kids, A Great STEM Project, Engineering Model Kit (Amazon Exclusive)

Butterfly Edufields 5in1 STEM Robotics Kit | Toys for Ages 8-13 | Smart Robot Car Kit | Gifts for Smart Kids | Electronics Robotics Kit for Kids 8-12 | Robot Building Toys Gift Set