&lt;p&gt;Variable Balans is an ergonomic chair, suitable for working at the desk, for children and adults.&lt;br&gt;&lt;br&gt; Its particular structure permits an open posture and encourage &lt;strong&gt;dynamic seating&lt;/strong&gt; which maintains the backbone in its natural curvature, thus improving breathing. This chair promotes the movement of your body, making the back and abdominal muscles work; glides and kneerests help you to distribute your weight, while the reclined seat allows you to breath better, prevents tension on the back and shoulders, improving circulation and increasing the oxygen level. &lt;br&gt; &lt;br&gt; This ergonomic chair is available with &lt;strong&gt;ash&lt;/strong&gt; wooden frame in &lt;strong&gt;natural dyed&lt;/strong&gt; or &lt;strong&gt;black lacquered&lt;/strong&gt;. For base's structure are available the protection felts, in natural or black colour.&lt;br&gt;Wide is the chromatic set presented for the seat's covering, available in &lt;strong&gt;Revive&lt;/strong&gt; fabric (100% recycled polyester, particularly resistant, flame retardant and washable) or &lt;strong&gt;Fame&lt;/strong&gt; fabric (a combination of wool and polyamide with fine weft, particularly soft and resistant).&lt;br&gt;The Revive fabric, created by designer Georgina Wright, is made using PET from recycled plastic bottles, enabling a lower use of energy, chemicals and the reduction of CO2 emissions.&lt;br&gt;Available on request other coverings including Umami fabric and Dinamica microfiber, visible in the photogallery. Ask the Customer Service for more information.&lt;br&gt;&lt;br&gt; Available as optional a useful &lt;strong&gt;cushion&lt;/strong&gt; for the &lt;strong&gt;backrest&lt;/strong&gt;; cushion ensures a maximum comfort on the back, thanks to its 4 cm padding. Covering is always made in matching fabric and colour with the seat.&lt;br&gt;&lt;br&gt;For children and people under 150 cm tall are available the Distance blocks inserts between the wooden runners and the knee pads to shorten the distance between the seat and the knee pads.&lt;br&gt;&lt;br&gt;Delivery times vary depending on the chosen upholstery:&lt;/p&gt;  &lt;ul&gt;  &lt;li&gt;Revive farbric ready in 20 days;&lt;/li&gt;  &lt;li&gt;fabric Fame ready in 30-60 days.&lt;/li&gt;  &lt;/ul&gt;  &lt;p&gt;Varier® Human Instruments conceived for man.&lt;br&gt; Designed by Peter Opsvik.&lt;br&gt; &lt;br&gt; This ergonomic chair is part of The Human Instruments Collection.&lt;br&gt; &lt;br&gt; &lt;iframe src=&quot;https://www.youtube.com/embed/H4HjwPsBzPE?rel=0&amp;wmode=opaque&quot; width=&quot;394&quot; height=&quot;221&quot; frameborder=&quot;0&quot; allowfullscreen=&quot;allowfullscreen&quot;&gt;&lt;/iframe&gt;&lt;br&gt; &lt;br&gt; All Variér products come with a quality control label and are certified for an extension of the guaranty up to 7 years on wooden components and 5 years on mechanisms. To take advantage of this extensions, customers should proceed to the registration of their data and that of the product at the website www.varierfurniture.it&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 cSedie01&quot;&gt;&lt;tbody&gt;&lt;tr&gt;&lt;td class=&quot;tDim1&quot;&gt;&lt;span&gt;80 cm&lt;/span&gt;&lt;/td&gt;&lt;td class=&quot;tDim2&quot;&gt;&lt;span&gt;52 cm&lt;/span&gt;&lt;/td&gt;&lt;td class=&quot;tDim3&quot;&gt;&lt;span&gt;50 cm&lt;/span&gt;&lt;/td&gt;&lt;td class=&quot;tDim4&quot;&gt;&lt;span&gt;93 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;7&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;