ProBlo Numbing Spray Cinnamon. Blow your man’s mind with the best oral sex of his life! Just a squirt or two of this numbing spray will allow you to give a better blow job by desensitizing your gag reflex, making it easier to take it longer and deeper than you ever have. Pleasant flavors make you kissable and him gulp-able. Use ProBlo for more intense oral play. ProBlo comes in Refreshing Mint and Sexy Cinnamon. Each sold separately. Cinnamon.