This set comprises 1xSMRS37, 1xSMRS37A, 1xSMRS37B, 1xSMRS37C, 2xSMRS39, 1xSMRS39A, 1x7/316A, 1x7/BC08 & 4 downpipes (as in 7/BC09).Parts may be assembled in different configurations other than the illustrated example. The main building facades are approx 6mm thick. The loading dock adds an extra 50mm of depth. Giving an overall depth requirement of 56mm or 2.25 inches. Additional parts, SMRS43 & 44, are now available to give an extra depth to the buildings of 61mm, bringing the overall depth to approx. 117mm or 4.6 inches. This is also offered as a "set" option, see 7/LRS01A.Set is supplied as a kit of unpainted, resin and white metal parts.