Yes please sent the other units (77pcs that have not been tested but need to install quickly on our busses in NL) From your random testing results we can currently conclude that there is a 16.66% Defect rate. Make sure you feedback your supplier on these defects and tell them to make at least 16.66% more handrails then requested in order to make up for the defective ones. That means for the batch of 77pcs another at least 12pcs will have a failure and must be replaced.