Wheelchair, active dual terrain, folding

Wheelchair, manual, active dual terrain, folding frame:
FUNCTION AND ENVIRONMENT: For people who self-propel. For use in urban indoor settings, as well as uneven urban, peri-urban and rural outdoor settings. Relationship of seat, back-, arm- and foot support dimensions anatomically appropriate for size of wheelchair.
Offers better outdoor mobility for CHILDREN and ADULTS who do not have advanced wheelchair mobility skills as the design makes it easier to clear small obstacles without needing to balance on the rear wheels.
POSTURAL SUPPORT: For CHILD and ADULT users who can sit upright and balanced without additional support, as well as those needing additional support such as adjustment of wheelchair configuration and/or addition of postural support devices. Users who do not need high back support AND/OR arm supports. 
SUPPLIED WITHOUT CUSHION.

Wheelbase and overall length:
Wheelbase longer than transport wheelchair with large rear wheels
Overall length similar to, or shorter than transport wheelchair with large rear wheels

Frame: Seat
Seat: sling
Seat angle: Fixed at 8 OR 12 degrees depending on model selected

Frame: Back support
Back support: tension adjustable
Back rest wider than seat
Seat-to-back support angle: Fixed at 90 degrees

Size and dimensions:
Seat width range: 4 0R 5 sizes between 320 and 480 mm depending on model slected
Seat depth: Adjustable and/or different seat depth options
Backrest height: Adjustable

Frame: Other
Folding frame
Push handles, integrated with back post, non-slip, ergonomic grip
Rear wheel can be horizontally adjusted using tools to achieve active/safe rear wheel position

Rear wheels and parking brakes:
Quick-release OR fixed axle rear wheels with push rims depending on model selected
Rear wheel size: diameter x width: at least 610 x 30 mm
Puncture-proof, polyurethane tyres OR pneumatic tyres depending on model selected
Rear wheels parking brakes, frame mounted, push-pull type.

Front castors:
Front castor size: diameter x width: a least 80 x 70 mm
Puncture proof, solid rubber castors

Clothing guards OR arm supports:
Clothing guards, rigid, fixed to protect clothing and cushion from rear wheels, dust, mud, etc. in all configurations of rear wheel position, seat angle, seat height, etc.

Foot supports:
Seat to lower leg support angle: 110 OR degrees depending on model selected
Foot supports located above castor wheels
Two individual flip-up foot supports
Height adjustable: at least 330-425 mm

Wheelchair weight:
Total weight: maximum 21 kg
Frame weight without rear wheels: maximum 15.5 kg.