Why Oumers: Oumers INC. mainly engaged in the development and export of products with high quality, stylish design. Oumers has always adhered to ” High quality products , good customer experience” business purposes. Committed to providing you with high-quality products and quality services. 1 Roll glow in the dark tape light your way! Let’s start DIY travel–Oumers Photoluminescent Tape can be use on emergency evacuation passageway the subway station underground passage karaoke bars dance halls cinemas supermarkets stores hospitals railway stations airports docks etc Tips: 1. Use fluorescent lamp and other light sources absorption 20-30 minutes before using, turn off the light can bright 5-8 hours, it can work better after absorbing strong light 2. if you use for performance ,there are some suggestions for you:first, the performer need to wear black clothes, second, the stage use black lights to produce night effects. Third, To get a better stage effect, the luminous tape sticker is better fully absorb strong light about 10-20 minutes before stage performance. Warm Prompt: If you have any product issue, please contact us when you received package. We will do our best to help until this is fully resolved. Have a good day! PRODUCT SPECIFICATIONS: Size: 2inchx33ft Material: non-toxic PVC Color: green fluorescent If you have any product issue, please contact us when you received package. We will do our best to help until this is fully resolved. Have a good day!