Bates®, Revolver, Covered Rotary, Swivel File, Turns 360 Degrees, 500 Cards, 2 1/4" x 4", Black, RSWC24-BK (call up on Amazon for better photos) These are comparable to similar Rolodex® products We have closed our offices and no longer have a use for them. They are in like-new condition $30 ea