Pirelli ready to discuss ?marbles?

Pirelli is ready to sit down with teams to discuss whether the situation of tyre marbles in Formula 1 needs to be improved - but reckons the matter is well under control. One of the consequences of Pirelli's high-degrading tyres has been an increase in the amount of rubber 'marbles' that are left on the track over the course of a race weekend.

Source: http://www.iracing.com/inracingnews/formula-one-news/f1-formula-one-news/pirelli-ready-to-discuss-marbles/

Lewis Hamilton David Hampshire Sam Hanks Walt Hansgen Mike Harris