5746 diameter bottle cap products are offered for sale by suppliers on Alibaba.com, of which lids, bottle caps & closures accounts for 24%, glass bottles accounts for 23%, and plastic bottles accounts for 6%.
A wide variety of diameter bottle cap options are available to you, such as non spill, non-refillable and child-proof.You can also choose from as, zinc alloy and stainless steel diameter bottle cap,