I agree that we misunderstood what these parts are and I apologize for the inconvenience. I want to be clear – the first three items (1474148, 1474149, 1474150) are the H-base and are similar in design to the one in the picture. That is, they are a metal frame with small caps (glides) attached at the bottom to protect the legs from scratching the floor. We entered the brackets under 8302.50.0000, which is the appropriate heading for metal hardware for furniture. Based on the description and unit value, I think this is probably still the appropriate classification. Please confirm, and I’ll get the revision sent to Customs.