Using your Trick Or Treat - Sam Glow-in-the-Dark Mini Backpack is super easy! Just adjust the shoulder straps to your comfort level and start packing your things. Whether it's your phone, keys, or small snacks, this backpack has enough space to hold them. To make the most of the glow-in-the-dark feature, expose the backpack to bright light for a while before going into a dark place. When it comes to cleaning, use a soft, damp cloth to gently wipe the faux leather surface. Avoid using harsh chemicals as they may damage the material. Since this is a restricted sale product for Australian and New Zealand customers, make sure to check all the relevant shipping and customs details if you're in these regions. Enjoy your spooky and functional backpack!