C.A. Sansho HG Denim Harness Buckle Set SA Harness Junior FIX-BR Buckle Set I purchased these from the manufacturer because the buckle on the child seat I use broke. The model we use has been discontinued, so I purchased several types and will sell the ones that don't fit. The belt width is 4cm. Please check that the metal fixing part (the crotch part) is the same as the one you have. According to the manufacturer, it is not recommended to use different model numbers, so please do so at your own risk. No price reduction is possible. - Type: Child seat belt - Color: Black - Model number: LM030305 Thank you for looking.