Similar to item 0127c, this black Sorbo (hard foam\rubber like material) petrol tank chinpad is tapered slightly so it wider at one end than the other. Approximate dimensions are 8" long, with the wider end being approx 6", and the slimmer end being approx 4" wide. Although I do not have an example of a tank myself, a customer with a tank asked if I could make one to these dimensions, so made a small batch at the same time. Unfortunately the unusual shape make this type more difficult to cut and shape and uses more material, hence higher price of this item