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Send and receive secret codes while learning about cryptography, ciphers and hidden messages with this Slinky Science Secret Messages kit.
- Step-by-step instruction booklets
- Some activities require common household items that are not included
- Online exclusive
- Includes: 2 spy decoder kits, invisible ink markers & instruction booklets
- Ages 8 years & up
- Model no. 2023
Promotional offers available online at Kohls.com may vary from those offered in Kohl's stores.
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