Intruder™ Standard Crawler Crib With Chiller Bottle. The complete, all-purpose worm container! Constructed of a tough-molded, non-corroding frame with thick insulated walls and packed with Good N' Lively Worm Bedding, the Crawler Crib is everything you need in worm care. Single door. 8" x 6" x 7". Equipped with chiller bottle to keep crawlers cool and lively on hot days. Walls "breathe" providing essential air for crawlers. Ventilation holes in the cover give added air. Rugged fold-down handle for portability. Made in the USA.