Richardson Seating makes the best bolt down stools and bolt down chairs in the world. We use cast iron for the metal bushing that holds the seat and cast iron for the bottom bell that supports the stool and attaches into the ground. Inside the column are two heavy gauge steel rods and the column itself is made of 16 gauge steel. We offer the column in chrome, brass, brown, and black. We can also send out for custom powder coating on larger jobs. We also provide the bottom bell cover in these four finishes. We offer three different ways to bolt the stools down to the floor including options for concrete.