Please refer to the attached drawings for the anti climb spikes shown on top of the precast wall which were included in the project proposal, in 50% design, in 90% design and in the iFC. It is observed that the existing spikes on top of the existing Kaust fense are different from the ones selected for the Kaust Perimeter Security Systems project. While SAPMT believes that propsoed spikes at 4m height are not visible from the ground to the intruder and thus create an element of surprise and are more feasible than the existing visible ones, and have already been approved by Kaust during the detaield design phase, it is nevertheless necessary that Kaust concurs with the design of such spikes.