Tumbleforms Positioning Seat Set

SKU: R030580

Size: Small


Includes harness with a 45° Hip Strap and quick release H-Belt to help maintain the childs position. Contoured interior has a 90° seat to back relationship to provide posturally correct seating. The Velcro on the wedge base allows the seat to be positioned in an upright or reclined position.

How to measure Tumble Forms2 products
The information and diagrams below will assist you in measuring a user for Tumble Forms 2 products.

1. Trunk width
Trunk width should be measured across the torso a few inches below the axillae. Do not measure circumference.

2. Sitting Hip Width
Measure the outside width of the hips with the user in a sitting position.

3. Thigh Depth or Seat Depth
Measure laterally from the back of the users seat to the back of the knee

4. Lower Leg
Measure from under the leg, behind the knee to the sole of the foot.

5. Sitting Height
Measure from under the seat surface to the top of the users head.

6. Overall Height
Measure from the sole of the foot to the top of the head with the user in a standing position. This measurement may be overstated when the user is measured lying down.

Other considerations
1. Does the user need extra support when sitting?
You may want to add support by ordering a headrest, harness, vest or pelvic strap.

2. Do the users feet need to be secured?
You may want to secure the feet by ordering a footrest.

3. Is there room for growth?
Consider the overall height and weight of the user and evaluate the product for growth Potential.


Small Medium Large
Height 53cm 68.5cm 86cm
Width 25.6cm 35.5cm 43cm
Fits Child Up to 91cm 122cm 152cm
Overall Height 
53cm 68.5cm 86cm
Outside Width  26.5cm 35.5cm 43cm
Inside Depth  20cm 24cm 33cm
Inner Height  46cm 58.5 73cm
Wedge included Wedge included Wedge included


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