Eigen's T4 series works on a proven pressure fix system which reduces the installation time of an otherwise extremely time consuming process. The new generation design overcomes problems usually associated with other plastic TGSI studs. The five moulded grooves provide even pressure within the drilled holes, but also allow air to escape during installation, alleviating upward thrust, thus preventing the tactiles from lifting.

The design of the top of the dome prevents water pooling, a problem with many other products, and a potential slipping hazard.