These kilns are great overall kilns with a 3 button digital controller. They are 4-1/2″ deep. Here is the way that Jen-Ken describes them.
Kiln Model: AF3P-Bead Annealer Kiln
Inside: 11″ x 4.5″ Voltage: 120 volts Amperage: 13 amps Watts: 1560 watts Receptacle: 5-15R
Includes: Shelf, Posts, Kiln Wash, Peep Hole Plug, Base Brick and Manual
Kiln Model: AF3P Bead Annealer
Interior Dimension: 11″ x 11″ x 4.5″ High
Max Temp: 2000F
Circuit Wire Gauge: 12
Weight: 40 lbs.
Ship Weight: 50 lbs.