This is the Carrera 20593 Evo/Digital Inside Shoulder for Curve 4/15 (14pcs)

• Extension parts – inside curb on a scale of 1:24
• DIGITAL 124, DIGITAL 132, Evolution
• To visually enhance your race track
• Package contents: 12 pieces

Inside curbs round off your race track
The clear advantage of outside curbs with race tracks on a scale of 1:24 can be quickly appreciated. They are designed to ensure that the large slot cars on a scale of 1:24 do not slip off the track when drifting into corners. However, if a visually appealing picture is also important to you at your race track, you should not do without the inside curbs. They complete the race track optically, but also functionally, because the slot cars otherwise bounce around when driving very slowly over the track edge. A very unpleasant driving sensation. The set contains a total of 12 inside curbs for the 4/15° corner. Two end sections are also included, which are attached to the following straight section. They come on a scale of 1:24 and can therefore be used for race tracks on the same scale.

This accessory is compatible with the following systems :
Carrera Evolution
Carrera DIGITAL 124
Carrera DIGITAL 132