With exquisite workmanship, this key is durable and has a long service life. It has the advantages of wear resistance, not easy to break and decompatiblem, and firmness. Such a key is compact, light and easy to carry. And it has two holes, which is convenient compatible hanging and storage. Its two prominent fulcrums can open the covers of oil tank, water tank and waste water tank, which is simple and efficient to use. It is constructed of nylon material. The length of this product is 4.5cm, the width is 2.1cm and the height is 0.5cm. It is generally applicable to most yachts, boats and so on. Item Name: Tank Cover Key Material: Nylon features: High Quality Material, Durable, Easy to Use Size Details: L: 4.5cm/1.77", W: 2.1cm/0.83", H: 0.5cm/0.2"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 3 x Tank Cover Key