Rotary business card file hold

Specification: 1.Ergonomic knobs with rubber inserts for gripping and turning ease. 2.Rotation mechanism holds cards in place for viewing. 3.Store 400 business cards in 200 pre-loaded,double sides clear slotted sleeves 4.Sleeves are 4 1/8"*2 7/8" and hold two cards each 5.Rubber pads on legs prevent slipping and surface scratching 6.Material:ABS plastic 7.Size:8 11/16"W*7 3/8"D*6"H