Office Chairs BR-1000 and BR-2000 The office chairs B-1000 and B-2000 are equipped with twin braked (hard) castors for soft floor, or with soft castors for hard floor or runners at no extra charge (please specify upon ordering). They are continuously adjustable by gas spring in height from 420 to 550 mm. Additionally they are equipped with a continuously height and tilt-adjustable, ergonomically-designed backrest. The office chairs are similar to our blood collection chairs. The office chairs: BR?1000 (2) and BR?2000 (4) differ from B?1000 (1) and B?2000 (3) in the armrests. The office chairs under article numbers starting with BR have black armrests. The five legs of the star-shaped base (Ø 610 mm) are made of die-cast aluminium and ensure greater stability. - Article No. B-1000 and BR-1000 have a black aluminium finish base. - Article No. B-2000 and BR-2000 have a polished aluminium finish base. The corresponding product descriptions and article numbers can be found in the AGA product catalogue on page 75. Interested? Contact us at +49 (0)5731 82283 or [email protected]. We'll be happy to help you further.