This offer is for an 8 panel mini metal play run ideal for small pets, such as Hamsters, Gerbils, Mice etc. Each panel measures 33cm (13 inches) wide x 23cm (9 inches) high. You will need an area of 68cm x 68cm (26 ½” x 26 ½”) to comfortably fit a single run. The bar spacing is a maximum of 1.2cm.