You are getting 8 Generic replacement Brush Heads that will fit your Oral B Electric Brush. 
 DETAILS:

Multi-level bristles to aid thorough cleaning, medium strength rounded-bristles to be soft on gums promote good healthy gumline.

Rotating head action with super quality soft bristles made by Dupont Tynex fibers.

Whitening technology for up to 37% more effective stain removal and cleaning.

Compatible with Oral B Vitality Precision Clean, Oral B Vitality Dual Clean, Oral B Professional Care, Oral B Professional Care SmartSeries, Oral B TriZone, Oral B Advance Power, Oral B Pro-Health, Oral B Triumph, Oral B 3D Excel.

These brush heads are not compatible with Oral B Vitality Sonic, Oral B CrossAction Power, Oral B Sonic Complete or Oral B Pulsonic.

Free Shipping in the USA.