200g mop with stay-flat banding and threaded plastic socket. The durable and effective Cotton/Viscose/Polyester mix may be laundered many times over, and autoclaved at 134C, without loss of performance. Anti bacterial "Biofresh" fibre has been woven into this mop. This inhibits the growth of bacteria and resulting odour. Recommended handle ALH7.It is recommended that all mops be laundered before initial use.