A swivel seat base, it came from our 2005 Fiat Ducato motorhome. We very rarely used it and the 50mm rise made the seat a bit too high for my wife. Its secured with four bolts underneath the original seat. VERY solid and I believe as it’s German it’ll have passed all relevant tests. Very heavy so it might be wise to collect, I can post but the price will have to be agreed!
please direct message me then I will get an email alert.