All Sykes-Pickavant Advanced Lighting Systems include a 2 year warranty!Patent protected Large 76.2mm locking casters Adjustable height 0.7 to 1.8m Used with AUD202H, AUD502H, SPX601H, SPX601C, SPX10K1C and Underhood Light Series Technical Specifications 3 durable wheels for portable and flexible use 6000g 700 x 300 x 300mm (when folded)