*Please note that this tray does not include a riser kit. Separate riser kits are available. Layers Of A Mira Flight Safe Shower Tray Here we have a perfect cross section of a Mira Flight Safe shower tray. It shows the intricate and precise moulding used to create such high-quality and durable products. You can see that the stone resin is sandwiched between layers of acrylic, providing a really strong tray which of course isn t back-breaking thanks to the handy hollowed sections underneath. Advanced Anti-Slip Technology Statistics show that around 235,000 people over the age of 15 are admitted to AE every year with injuries sustained in the bathroom. The most common shower-related injuries are usually caused by slips, trips and falls. Mira Safe Shower Trays are tested using the DIN.