Put smiles on the faces of recipients of these customized tumblers! They're made of acrylic outer shells with acrylic liners for insulation and hold up to 16 oz. of liquid. This features a twist-on cap with spill-prevention slide lock and a no-slip rubber grip bottom. People will love using this for a delicious drink on the commute to work. Add your company name or logo and get customers to shop with you first for all of their needs!