Extensive compatibility - Replacement vacuum cleaner bags are compatible with i3+(3550), i3(3150), i7+(7550), i7(7150), s9+(9550), s9(9150), i6+(6550), i8+(8550), E5 E6 7. Compatible with all Clean Base automatic dirt disposal models. Environmental protection - made of high-strength environmentally friendly materials. Each bag holds 30 bins of dirt and debris. The non-woven bag can decompose within 90 days under natural conditions and will not pollute the environment; the plastic parts are made of recyclable material. No tools required - the installation method of the kit is the same as the old kit, it snaps into place and can be replaced quickly and easily. Easy to install and easy to use. High performance - Compared with traditional cleaning methods, this dust bag has strong sealing performance, is easy to handle, and does not dust. Size: 12 x 13 x 16.5 cm color: White Material: non-woven fabric Package contents: 18 x dust bags 1 x Cleaning brush Only the above package content, other products are not included. Note: Light shooting 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.