See How Sealux is Like No Other Bathroom Tiling Trim on the Market!
The Sealux range of tile trims are patented to allow the silicone/caulk to stretch as joint movement occurs. This video shows that as the gap between shower ledge and tiles increases the Sealux trim through it's patented 'Bond-Breaker' tape allows some of the silicone to stretch and maintain a waterproof seal. Simple yet cleaver and lasts the test of time.