The only set of rollers that come with pins are the pink rollers. The remaining colours do not have any pins accompanying it.
Approximate dimensions of the rollers are:
Red rollers - length 7.5cm, diameter 2.7cm
Blue rollers - length 6.5cm, diameter 1.6cm
Green rollers - length 8cm, diameter 2cm
Pink rollers with pins - length 6cm, diameter 1.5cm
Limited stock available.