Zebra Silkworm eggs are sex limited, males are pure white and females are zebra striped and spins a white cocoon. This strain is available through out the year in limited amounts. All our eggs are produced exclusively for us, you will not find better quality eggs or variety anywhere else. Our eggs are shipped loose in counts over 2,000 and glued for counts of 1,000 and under on a single 150 mm extra sturdy Petri dish. We supply our egg stock to pet owners, zoo's, educational research, and distributors all over the world. Each order will ship with hatching/storing directions on the label.