[More Choice of Three Colors]You will get 12 pcs roomba replacement bags,4 pcs light grey roomba bags,4 pcs drak grey roomba bags and 4 pcs blue roomba bags.[Perfect Fit]Our automatic dirt disposal vacuum bags are compatible with iRobot Roomba Vacuum Cleaner i & s & j series i3 (3150),i3+/i3Plus (3550);i4 (4150),i4+/i4 plus (4552);i6 (6150),i6+/i6 plus(6550);i7(7150),i7+/i7 plus (7550);i8 (8150),i8+/i8 plus (8550);j7 (7150),j7+/j7 plus (7550);S9 (9150), s9+/s9plus (9550/955020).[Durable and Effective Isolation]Made of non-woven fabrics,Each bag holds dirt, dust and hair.[Self Locking Auto Seal Collar ]Automatically lock the dust when changing the dust bag to avoid secondary dust.color:Photo colorMaterial:non-woven fabricPackage Contents:12 x dust bagOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.