Welcome to Ruizhao Daily Chemical Industry. The quality of this product is guaranteed. 30 bottles are sold in a box, starting from 300 bottles. We will arrange to deliver logistics if the logistics is over 300. The freight is a multiple of 30 for your order after the goods arrive. If you don't understand anything, consult customer service. I look forward to cooperating with you!! Contact Manager Wang: 13930123506 manager Zhang: 13832311244 factory direct sales, reasonable price, welcome to negotiate!!!