The product is a set of 28x Hornby Dublo Meccano Ltd insulating tabs, designed for model railways and trains. These dark grey tabs are specifically for the OO gauge scale and are part of the analogue control system. Some have been used. See photo.
Hornby Dublo 2-Rail BR Grn A4 Silver King +job lot of Dublo parts
Hornby Dublo 2 or 3 rail B459325 flat wagon & Dinky Dublo Tractor - OO gauge
Hornby Triang R381 R344 R577 R254 boxed (see pics & description) Hornby Dublo
Hornby Dublo EDP12 Passenger Train Set USED Duchess of Montrose (Hornby)
Hornby Tri-ang Hornby Dublo Pullmans Spares Detailed interiors brass table lamps
