This U-shape integrated airless pump bottle features an all-in-one structure. Two diameter options: 33mm for 15ml,30ml,50ml; 40mm for 80ml,100ml,120ml. Available in multiple capacities. The airless pump design blocks air entry to prevent cosmetic oxidation and minimize product waste. The pump delivers consistent dispensing with reliable sealing. Suitable for serum, lotion and other skincare products. Custom color and logo printing are supported, ideal cosmetic packaging for beauty brands.