Come and Check Our Promo Solutions.This shaker bottle is made of high quality plastic with a stainless steel mixer ball. It has a large capacity of 20oz.You can shake and mix anything you want with ease,like protein powder,supplements,milk shake,smoothies and more.Screw-on lid creates leak-proof seal,and flip cap snaps securely shut to keep contents contained. Add your logo for next promotional event. BPA Free. Pls check inventory and detailed info with us before placing your orders.