4 Tier Shower Caddy Tension Pole with Snap-N-Fit Technology. The 4-Tier Shower Caddy Tension Pole with Snap-N-Fit Technology is especially convenient for efficiency type shower stalls, since it is a brilliant space saver for bathroom accessories and toiletries. Four sturdy mesh shelves connect to an equally sturdy rail on this tension pole, leaving room for water and soap scum to pass through them while resisting mildew. With four simple, but functional, shelves, there is room for the whole family to keep their bathroom accessories right in a single, convenient place out of the way and in the shower, right where you will use them the most. New Snap-N-Fit design, patent pending. Quick and easy shelf adjustment. Easy no-tool assembly.