This item is a set of Front Brake Rotors Ceramic Brake Pads, Rear Drums, Shoes and Springs. It will fit the following years and models:

2006-2008 Chevrolet HHR 2.2L 2.4L With 5 Lug Rotors & Using Rear Drum Brakes ( No SS Turbo Models )
Kit Includes: 7pc

2x Part# 55122 Front Rotors , REF OE # 15274604 , 5 Lug Rotor
1x Part# CD1160 SCD1160 Ceramic front pads , 4 pads for L & R
2x Part# 11-80121 5 Lug Rear Brake Drums
1x Part# B795 NB795 Rear Brake Drum Shoes 4 Shoes 1 Set
1x Part# 118.62034 7324 Rear Drum Shoe Spring Set Both Sides