{"product_id":"giftinbox-invisible-ink-pens-with-uv-light-12-pack-spy-pens-notebooks-for-kids-secret-messages-party-favors","title":"GIFTINBOX Invisible Ink Pens with UV Light – 12 Pack Spy Pens \u0026 Notebooks for Kids Secret Messages \u0026 Party Favors","description":"\u003cp\u003eThis 12-piece spy pen set from GIFTINBOX comes with invisible ink pens and matching mini notebooks, letting kids write secret messages that appear only under a UV light. Each pen has a built-in purple UV LED, and the set includes six ink colors: blue, black, red, yellow, green, and purple. The detective-themed notebooks include maze puzzles and arithmetic problems, making this kit suitable for kids ages 4–12 (recommended for ages 8–12). It works well as party favors, classroom prizes, or for spy-themed games at home.\u003c\/p\u003e\n\n\u003ch2\u003eWhat’s inside the spy kit?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e12 invisible ink pens with UV lights (1 of each color per set, with two of some colors? Actually the 6 colors are spread across 12 pens, so likely two pens per color)\u003c\/li\u003e\n\u003cli\u003e12 mini notebooks with detective cover designs\u003c\/li\u003e\n\u003cli\u003eEach notebook contains maze puzzles and simple arithmetic problems to solve\u003c\/li\u003e\n\u003cli\u003ePens require no batteries – the UV light is powered by the pen’s internal battery (type not specified)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow does the invisible ink work?\u003c\/h2\u003e\n\u003cp\u003eWrite on paper (or other surfaces) using the pen – the ink dries clear and invisible. To reveal the message, press the button on the pen to turn on the UV light and shine it over the writing. The purple UV light makes the ink glow, so secret notes become readable. The ink is permanent once dried, but also washable from skin and most surfaces, so kids can experiment without causing permanent stains.\u003c\/p\u003e\n\n\u003ch2\u003eWhy the notebooks add extra fun\u003c\/h2\u003e\n\u003cp\u003eUnlike blank notebooks, these mini pads come pre-printed with maze puzzles and arithmetic exercises. Children can solve the puzzles with the invisible ink, then check their answers by shining the UV light. This turns the spy kit into a problem‑solving activity, not just a writing toy.\u003c\/p\u003e\n\n\u003ch2\u003eGreat for parties and gifts\u003c\/h2\u003e\n\u003cp\u003eWith 12 identical sets, this pack is ready for group play – ideal for birthday party favors, goodie bags, or classroom rewards. The spy theme works for escape rooms, treasure hunts, and detective games. It also makes a thoughtful birthday or Christmas gift for kids who enjoy mystery and role‑play.\u003c\/p\u003e\n\n\u003ch2\u003eAre the pens safe for kids?\u003c\/h2\u003e\n\u003cp\u003eGIFTINBOX states the ink is harmless and flavorless, so it’s safe for normal use. The pens are designed for children, and the ink washes off skin with soap and water (though it’s permanent on paper). As with any small parts, adult supervision is recommended for younger children.\u003c\/p\u003e\n\n\u003ch2\u003eSpy pen kit at a glance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGIFTINBOX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWriting instrument form\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBallpoint pen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInk colors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlue, black, red, yellow, green, purple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUV light color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePurple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of pens\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of notebooks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAge range (description)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKid (recommended 8–12, suitable for 4+ with supervision)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNotebook features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMaze puzzles and arithmetic problems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCommon questions about this spy set\u003c\/h2\u003e\n\u003ch3\u003eCan the invisible ink be used on skin?\u003c\/h3\u003e\n\u003cp\u003eYes, the ink is washable and safe for skin, but it may take a few washes to fully remove. It’s non-toxic and flavorless.\u003c\/p\u003e\n\n\u003ch3\u003eDo the pens come with batteries?\u003c\/h3\u003e\n\u003cp\u003eThe UV light is built-in and powered by small batteries (likely LR41 or similar). The product does not specify if batteries are included, so you may need to check the package or have replacements ready.\u003c\/p\u003e\n\n\u003ch3\u003eHow long does the UV light last?\u003c\/h3\u003e\n\u003cp\u003eBattery life is not stated, but typical button cells in such pens last for several hours of intermittent use.\u003c\/p\u003e\n\n\u003ch3\u003eAre the notebooks refillable or single-use?\u003c\/h3\u003e\n\u003cp\u003eThe notebooks are not refillable – once filled, kids can use the blank backsides or extra paper with the pens.\u003c\/p\u003e","brand":"GIFTINBOX","offers":[{"title":"Default Title","offer_id":58078454546735,"sku":null,"price":27.93,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/4478\/7503\/files\/giftinbox-invisible-ink-pens-with-uv-light-12-pack-spy-pens-notebooks-for-kids-secret-messages-party-favors-1.jpg?v=1781611936","url":"https:\/\/toysforkid.co.uk\/products\/giftinbox-invisible-ink-pens-with-uv-light-12-pack-spy-pens-notebooks-for-kids-secret-messages-party-favors","provider":"Toys For Kid","version":"1.0","type":"link"}