This adjustable 1 piece extension kit will allow for ZLINE Wall Mount Range Hood mounting on 9 ft. to 10 ft. ceilings. One 36 in. tall unvented chimney piece will replace one of the 2 standard 16 in. chimney pieces (supplied with your ZLINE Wall Mount Range Hood) to allow for mounting on 9 ft. to 10 ft. ceilings. Pieces adjust between 37 in. to 51 in. Brushed stainless steel finish will match your range hood and add a sleek, elegant look to your home.