Olympus Lubri-Flex ureteral stents combine a unique polymer material that softens at body temperature while "remembering" its shape with a chemically bonded, wettable solution that becomes ultra-slippery when moistened. The result is a stent that satisfies the needs for ease of placement and improved patient comfort. Lubri-Flex stents are available in a wide variety of sizes, including a 4.5 Fr that is ideal for paediatric use. Each stent is supplied with an attached braided nylon tether and one Ramrod metal tip push catheter.