The square pyramid caps will fit Square Newel Posts up to 90 x 90mm. Part of the Axxys Solo range of modern and contemporary stair parts. The solo cap is a metal cap with a wooden pyramid insert in the top that is pre-finished and ready to be fitted. Pine and Chrome. This cap will fit onto a 90mm square newel post. Cap Size: 110mm x 110mm x 38mm Also available in Pine/Brushed Nickel, Oak/Chrome, Oak/Brushed Nickel, White/Chrome or White/Brushed Nickel. SKU: JWPCAXFNC