Y-Not Tri-Pack includes Knee, Elbow and Wrist pads. 

Grommet Elbow 18-20cm above & 14-16cm below Knee 18-23cm above& 14-18cm below
Wrist 10-13cm

Junior Elbow - 19-23cm above & 16-20cm below Knee - 23-28cm above & 16-20cm below Wrist - 13-15cm

Small Elbow - 24-28cm above & 19-23cm below Knee - 30-38cm above & 23-28cm below Wrist - 16-19cm

Medium Elbow - 27-30cm above & 24-28cm below Knee - 38-41cm above & 28-33cm below Wrist - 19-22cm

Large Elbow - 29-33cm above & 27-30cm below Knee - 48-51cm above & 36-41cm below Wrist - 20-23cm