Matte Black 3/4 Inch (19mm) T-Molding - Arcade World UK
PVC Trim Boards at Lowes.com
PVC 3" Trim Ring - - Amazon.com
Trim Seal with Side Bulb | PVC Plastic Trim with EPDM Rubber Bulb Seal – Fits 1.5mm Edge, 9.5mm Bulb Seal Diameter (1.50 Meter) : Amazon.co.uk: Automotive
Rothley White Plastic Flat Bar 1000 x 24 x 2mm - Screwfix
AZEK Trim 1 in. x 3-1/2 in. x 12 ft. Traditional Trim PVC Board ART12504144 - The Home Depot