42mm plastic screw caps The engine oil caps are made of high-quality raw materials which uesd on engine oil can, selected high-quality new PE plastics, and refuse to use secondary waste. We also use domestic advanced machines, the appearance of the product is bright, and the sealing performance is good. Our lids are assembled and produced using a fully automatic assembly machine that 100% inspects each cap to ensure there are no air leaks. Product Description Product Name: 1L 4L 5L Engine oil bottle cap/jerry can motor oil screw cover in stock Material: PE new material,PP Diameter: Standard/Custom Type: Engine oill caps,Plastic screw cap,easy spout cap,pull up cap,pull out cap,non s…