Plastic sliders provide extra strength on selected rows of a flexible slat bed incorporating 53mm laminated wooden slats.  By binding two (2) 53mm wide laminated slats together it is possible to allow for heavier body weights.  Selected rows on just one side of a double, queen or king size bed or on both sides can be strengthened.  Rows beneath just shoulders and hips can be strengthened or all rows strengthened on one or both sides for maximum effect.  Each tensioned row can be further adjusted for sofness or firmness.  Tension sliders and additional tensioner slats can be retrofitted to existing single slat systems.  Two (2) tensioners are required on each row to operate in tandem and are adjustable to increase or decrease the tension.  Pushing the pair of sliders together towards the centre SOFTENS the support whilst pulling them apart HARDENS the firmness (see diagram). The large central arrow points to the outside slat holders.  Plastic Sliders usually operate with a thinner tensioner slat that is shorter than the span of the main slat.  The Furnacc slider has an internal gusset that is unique in that combinations of slats between 14mm and 17mm can be accommodated.  This offers the opportunity to fit combinations of 8mm/6mm, 9mm/6mm, 10mm/6mm, 8mm/8mm or 9mm/8mm.  Tensioner slats (6mm & 8mm) are available separately.  Plastic sliders are sold in pairs.