A good quality cowl to help prevent unwanted bird and animal entry and also reduces rain entry.
It comes in either an aluminium material (painted red of buff) complete with stainless steel straps ready for immediate installation. Or an all stainless steel version painted red (but described as terracotta in the colour options).
Place the cowl over the chimney pot,secure in position by tightning the strap fixing with a screwdriver
Aluminium, and Stainless Steel