The Timloc InvisiWeep Wall Weep is an essential tool for providing effective drainage and ventilation in cavity walls. These units, available in a pack of 50, are designed to be easily installed into a standard perp joint. Measuring 102 x 65 x 10mm, they discreetly blend into the wall due to their black / blue colouring. Made from durable and weather-resistant material, they ensure longevity and reliability for your construction needs.