Power & Control Base - 175mm x 2 Plus Two Hand Controllers Fully Compatible with Standard and Classic Track. Contents: 1 x Powerbase 1 x Half Straight 2 x Hand Throttles Please Note: This powerbase requires P9400 Transformer, which has a square end. SAFETY NOTICE Warning! This product is not suitable for children under 3 years because of small parts which could present a choking hazard. Some components have functional sharp edges. Handle with care. This product is intended for indoor use only. The transformer is not a toy- \"it's a transformer for toys.\" Before use, check that the transformer is the correct voltage for your mains electricity supply. Only use this product with the recommended transformer.