10 vacuum bags and 2 free belt per package.Universal style bags fits both F-style and twist-style Models. Fits The Following of All Models: Sentria Avalir G1 G2 G10D, Diamond & , Ultimate G Seriers G3 G4 G5 G6 G7 G8 G9 G10 G11 G12.. Replaces Part 205811, 204808, 204811, 204814. High-efficiency filter bags keeps clean while reducing common household dirt, hair and other dust.H11 high-efficiency filtration reduces 99% common household dust, particles. Easy to Use: Easy to install and dispose without any tools needed, perfectly fit and great performance. Material: non-woven fabric + rubber Color as shown Package Contents: 10 x dust bags 2 x belts Only 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.