1.OEKO-TEX standard 2.best price with good quality and promopt delivery time 3.good sale and after-sale service material: brass, alloy,iron,nylon...sizes are availablecolor :any customer's design or logo is welcome, we can make it same as your original our company is skilled in producting metal button, like snap button, jeans button,eyelet, buckle , prong snap button, loop button and so onwe can ...