12 Tub Hatchling Snake Rack With Glass locking door. Features: 12 x Pre-drilled large hatchling tubs. 1 x Heat cable that runs twice along the back of each layer of the rack. 1 x thermostat to control the heat cable. This small snake rack as 12 tubs included, the whole size of the unit is 24.5" x 13" x 20.5". This model includes the glass locking door. Everything you need to get your first snake rack up and running.