&lt;p&gt;Task chair adjustable in height, perfect for decorating the office.&lt;/p&gt;  &lt;p&gt;Flat nylon base ∅640 mm is provided with black castors ∅65 mm, but are also available the soft castors ∅65 mm.&lt;/p&gt;  &lt;p&gt;The seat has plywood core and polyurethane padding, it is upholstered with different fabric or imitation leather, available in fireproof or waterproof versions, in a wide range of colours.&lt;/p&gt;  &lt;p&gt;The &lt;strong&gt;backrest in mesh&lt;/strong&gt; is equipped with adjustable lumbar support and comfortable headrest, adjustable in height and direction, in mesh like the back. The mesh is breathable and available in black, gray and white.&lt;/p&gt;  &lt;p&gt;The optional armrests are available in different types, both fixed or adjustable.&lt;/p&gt;  &lt;p&gt;The chair is equipped with&lt;strong&gt; 4 locking positions&lt;/strong&gt; &lt;strong&gt;Syncro mechanism,&lt;/strong&gt; which allows adjusting the inclination of the seat and back in a synchronized manner; the seat can oscillate and be locked in 4 different positions.&lt;/p&gt;  &lt;p&gt;The oscillation resistance is adjusted through the &lt;strong&gt;strength adjuster&lt;/strong&gt;, while the &lt;strong&gt;anti-shock system&lt;/strong&gt; avoids the abrupt return of the seat in an upright position.&lt;/p&gt;  &lt;p&gt;Upon request is also available the 4 locking positions Syncro mechanism with seat slide or the version with upholstered headrest. Please ask the Customer Service for more information.&lt;/p&gt;                            	    	                      	    	                      																				    	                      							    	                      				    	                      	    	                      	    	                                                                                                       &lt;p&gt;&lt;/p&gt;&lt;div class=&quot;sizes-and-weight-desc&quot;&gt;&lt;b&gt;Dimensions and weight&lt;/b&gt;&lt;table class=&quot;tDim cUfficio01&quot;&gt;&lt;tbody&gt;&lt;tr&gt;&lt;td class=&quot;tDim1&quot;&gt;&lt;span&gt;49 cm&lt;/span&gt;&lt;/td&gt;&lt;td class=&quot;tDim2&quot;&gt;&lt;span&gt;51.5 cm&lt;/span&gt;&lt;/td&gt;&lt;td class=&quot;tDim3&quot;&gt;&lt;span&gt;42.5-56 cm&lt;/span&gt;&lt;/td&gt;&lt;td class=&quot;tDim4&quot;&gt;&lt;span&gt;131-151 cm&lt;/span&gt;&lt;/td&gt;&lt;td class=&quot;tDim7&quot;&gt;&lt;span itemprop=&quot;weight&quot; itemscope=&quot;&quot; itemtype=&quot;http://schema.org/QuantitativeValue&quot;&gt;&lt;span itemprop=&quot;value&quot;&gt;20.9&lt;/span&gt; &lt;span itemprop=&quot;unitCode&quot;&gt;kg&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/tbody&gt;&lt;/table&gt;&lt;/div&gt;