SPECIAL HONDA SRA & NF/FFMC approved U-lock (3250 g)Hardened steel shackleAnti-twist shackleAnti-corrosion treatmentResistance to sawingBrushed stainless steel bodyAnti-drill and anti-pick lockShackle diameter 18mmBlock height 49mmInternal dimensions of the shackle (L-w) 330mm-130mm 3 keys