Sold individually- £24.99 eachEleven interchangeable heads to choose from-4.0mm, 5.0mm, 5.6mm, 6.0mm, 6.2mm, 6.3mm, 6.4mm, 6.5mm, 6.7mm, 6.8mm and Spline Drive.Fasstco Spoke Torque Wrench Heads£24.99PriceSize:SelectComing Soon - ETA on requestNotify When Available