Fresh, Homemade Shells in Minutes. Simply place up to 4 corn or flour tortillas on this unique baking rack and bake for 7-8 minutes. Enjoy crispy, healthier, low-fat taco or tortilla shells—no messy oil or frying required! Easy-clean, non-stick surface. Hand wash. 14 3/4" long x 7" wide x 3 1/2" high.