Netting backrest   / 5 prong base with castor,
model Net 207DA 

 Picture above backrest Grey 3110

  
Minumun seat height 59cm , Maximum seat height 85 cm,
 Seat and backrest above c/w Blue 3115 

   Backrest 43W x 53H cm, seat 47W x 50D cm
seat height 59 to 85 cm