Cover the spectrum of the four basic tastes: salty (salt water), sweet (sugar or honey water), sour (lemon juice or diluted vinegar), and bitter (diluted almond, coffee, or bitter chocolate extract) with this fundamental set.
The varnished hardwood tray (10" x 4" overall; 1" high) has four pairs of ½" deep insets to hold the 1-ounce bottles. Tray edges extend for easy carrying.
Color-code the matching pairs with adhesive dots for "control of error." The amber glass hides the color of the liquid, and the glass droppers clean easily. Ages 3½ to 6.