Safe and effective: Hold up to 30 bins of dust while keeping the dustbin clean We suggest to replace the disposable dust bag every 1-2 months, this item could be used over 1 year Compatible well with all for Roomba Clean Base automatic dirt disposal models, including for irobot roomba S9+, I7+, I6+,I3+ , I4 plus , I3 Plus, I4 Plus, I6 Plus, I7 Plus, S9 etc Fits well to make you vacuum keep powerful and durable As part of routine maintenance, accessories are easy to disassemble and replace Colour:White+gray Material:Non-woven fabric Package Contents:6 * Dust bag 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