Penn Plax is a name that stands for Quality Innovation and Integrity In the Pet Industry for over 50 years Experience a great line of Pet Products in all categories! Penn-Plax is committed to creating and manufacturing innovative pet products for first-time pet owners and serious hobbyists alike. Small Animal Carrier Sml Cage De Transport Pm. Category: Small Animal Sub Category: Housing Accessories. Cubes: 0.0035. Weight: 0.7700.