This is Knobbles and Bobbles' grey ceramic knob with white polka dots, the diameter of this knob is 3.8cm and the bolt will fit through a door that is up to 3cm thick.
Each knob is supplied with the ceramic head and metal fixings including bolts and washers.
Longer bolts are available from the top menu under All Knobs -> Fittings and Longer Bolts.
Please contact us with any questions. Email email@example.com or you can ring us on 07746 357625.