SLE790BH SLE790BH - Code 124 - O Gauge Double Slip - ElectrofrogDouble slips can save valuable space at station approaches, junctions etc. Peco Streamline Bullhead 0 Gauge track has set unsurpassed standards for 7mm scale realism. Superbly detailed, its 'wood grain' sleepers are the correct scale width and have integrally moulded scale chairs with square headed fixing bolts and wooden keys. This range is compatible with the 0 Setrack range; and if, as on the real network, you wish to use a combination of Bullhead