1) In the neon sign market, most suppliers use PVC, while our neon tube is made of Food Grade Silicone: no harm substance, friendly to kids, anti-UV, anti-aging, eye protection…Moreover, the acrylic backboard we use is supplied by Mitsubishi. It’s of high transparency. 2) We're so confident in our craftsmanship and careful attention to details that we offer a 12 month warranty.3) Every product must be tested strictly before packing& shipment. You won't regret if buy from us, you'll get what you pay for.