The Timloc InvisiWeep Wall Weep is a highly efficient and essential component for maintaining the structural integrity of cavity walls. These 102 x 65 x 10mm black units are designed to allow moisture to escape from the wall, preventing potential damage and dampness. The discrete design of the Timloc InvisiWeep ensures it blends seamlessly with the wall, maintaining aesthetic appeal while providing function. Made from durable plastic, they are easy to install and come as a pack of 50 pieces.