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Spinella Duplex black-out cassette roller blind

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Cassette roller blind SPINELLA DUPLEX is an innovative system of two cassettes fixed both at the top and the bottom of a window sash.  Such a solution enables decorating a window by two blinds at the same time. Moreover, the blind has a comfortable spring mechanism which automatically rolls up the blind to the cassette.

Producer: toma

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Cassette roller blind SPINELLA DUPLEX is an innovative system of two cassettes fixed both on the top and the bottom of a window sash.  Such a solution enables decorating a window by two blinds at the same time. Moreover, the blind has a comfortable spring mechanism which automatically rolls up the blind to the cassette. Fabric can be stopped at any desired position. The blind Spinella Duplex constitutes an innovative solution to dazzling sunlight and it is suitable for new generation windows made of PVC, aluminium, and wood.  Varied patterning of our fabrics gives us an opportunity to match them to our interior decoration.


  • fixed to a window sash
  • perfect for new generation windows made of PVC, aluminium or wood
  • blind fixtures made of aluminium in a white and brown colour
  • the blind is based on an aluminium roller and finished with an aluminium bar
  • practical spring mechanism automatically rolling up the fabric
  • size of cassette roller blinds enables sustaining interior aesthetics even when mounted directly on the window sash
  • it is possible to use a speed reducer with extra charge
  • perfect solution limiting too intensive glare


  • possibility of combining two fabrics which constitutes a unique window decoration
  • cassette system enables opening the window without the necessity to roll up the blind
  • properly fixed side rails make it possible to roll the blind with a window half-open while the fabric stays close to the glazing
  • practical solution guaranteeing privacy
  • reliable protection of interior against sun exposure


  • fabric colours available on the Internet may slightly differ from the original colours (we don’t take the responsibility of individual monitor settings)
  • if you have doubts concerning the colour, contact us- fabric colour claims won’t be accepted
  • shipping cost provided in the bookmark ‘delivery’ applies to roller blinds with the maximum width and length of 1,65m in the quantity up to 7 pieces. In case of biger blinds or larger quantity the delivery cost will be calculated individually


Measurement of a cassette roller blind Spinella is very easy. Following the manual enables proper measuring and eventual mounting of the blinds.

Making measurements provide only width and height of the glass with the glazing beads according to the instructional picture below.

In case of round glazing beads 2 cm extra are added to the provided width of the roller blind to fit the guide rails. To mount the guide rails properly at least 1 cm of flat surface is needed on each side of the window frame.

The entire width of the blind is approx. 3 cm larger than the width of the fabric (glass+glazing beads).

Mount of a cassette blind SPINELLA  DUPLEX is very easy. It can be mounted:

  • to a window sash which is the easiest and most universal installation as well as it provides a wide usage of blinds
  • the blinds can be also fixed on the sides and at the bottom of the window


a. cassette

b. guide rail

c. end cap

d. pulley set

e. glazing bead

f.  window sash

step one - surface preparation

Window frame needs to be cleaned in places where a cassette and rails will be fixed

step two - guide rails mount

Remove a protection of an adhesive tape and glue two guide rails on both sides of  a window sash 1 centimetre from a glazing bead. Fixing rails should start from a handle side.

In case when  the distance from a handle to a glazing bead is shorter than 1 centimetre the guide rail should be fixed maximally close to the handle. Glue another rail proportionally far from a glazing bead as to place the roller blind in the central part of the window

step three - cassette mount

After having fixed guide rails remove protection of a cassette tape and glue it on the upper part of a window sash in such a way to put its edge in the same place as the rail’s edge. There should be a right angle between the rails and the cassette.

step four - setting the chain blockade

Next step is setting the brake in a roller blind. The fabric needs to be unrolled as to place the bottom bar evenly to rails edges. Additional blocker should be fixed near a cassette.

In the instructional video the guide rails are mounted on the glazing beads.

Such a solution is possible only with the flat glazing beads.

In case when the glazing beads are round the guide rails should be mounted next to them what, in effect, increases the entire width of the blind by at least 2 cm.

NOTE: Please measure according to the instructions in the "Measure" tab and not the following film. The film was included as an assembly instruction for blinds and not a measurement.


  • slows down rolling of a blind
  • fixed  inside the cassette does not spoil a visual effect
  • does not need additional regulation

Shipping rates may differ when additional duties or other non-routine customs charges apply in the country of delivery.

Technical data

Blind length - range 60-160 cm
Blind width - range 35-120 cm
Cassette/Masking plate Yes
Colour of fixings White, brown
Fabric type Gummed black out fabrics
Manufacturer toma
Material of fixings Aluminium
Measure unit Pcs.
Type of blind SPINELLA DUPLEX cassette roller blind
Type of mounting Window sash


Anti-dust brush Yes


Warranty time 24 months

1 person commented the product

Added Lorna on 2015-07-08 12:53:16
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66.36 GBP/pcs.
  • Product is available
  • Dispatch from: 7.93 GBP
  • Realization 5 - 10 working days
Joanna Prześlica

Joanna Prześlica

category specialist

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