Double-sided whiteboard plain one side with discreet 2.5cm grid guide on reverse or magnetic coated steel plain both sides. Height adjustable by 210mm. Stands have locking castors and stability bar. This product has a 5 year surface guarantee.Stands have locking castors and stability bar.This product has a 5 year surface guarantee.Dimensions:9x6 - W640 x H1580mm9x12 - W940 x H1730mm15x12 - W1240 x H1880mm