I Only Use Sarcasm Periodically | Funny Chemistry Pun Tee-T-Shirt

Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 65% Cotton, 35% Polyester, Imported, Machine wash cold with like colors, dry low heat, This is the perfect gag t-shirt for any chemistry student, physics teacher or science lover you know who has a great sense of humor. Featuring the chemistry joke ”I Only Use Sarcasm Periodically” this awesome apparel is ideal for a science convention!, NOTE: ”I Only Use Sarcasm Periodically” T-Shirt is designed to be fitted. If you prefer a looser fit, please order a size up. This tee shirt is the perfect present for any gift giving occasion like Graduation, birthday or Christmas for your nerd friends!, Lightweight, Classic fit, Double-needle sleeve and bottom hem