Railings AZEK Railings Products > Railings > AZEK Railings Timbertech Black Post Sleeve 5.5″ X 5.5″ X 39″ Timbertech Black Post Sleeve quantity Add to Quote SKU: ARBPOST5539 Category: AZEK Railings Related products Timbertech Black Post Skirt Add to Quote Timbertech White Pyramid Cap Add to Quote Timbertech White Post Sleeve Add to Quote Azek 6’X 36″ White Premier Rail Kit. Add to Quote