Heavy duty puppy pen doggie solutions heavy duty puppy play pensour heavy duty puppy pens are made with a strong tubular framework and have been double coated for long lasting protection and finished with a hardwearing blacksilver hammerite finish this puppy pen is available in 2 sizes medium 125cm l x 80cm w x 70cm hlarge 125cm l x 80cm w x 90cm hthe 70 cm medium pen comes with a top and bottom door so puppies can easily get in and out when the bottom door is open and are secure when only the